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Link Posted: 7/9/2017 10:19:20 AM EDT
[#1]
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Quoted:
If you are looking for a compact / concealable travel or car gun and you don't want to deal with the hassle of an SBR then why not an AR pistol or an AR with a LAW folding stock or an AR pistol with a LAW folding stock. I put a LAW folding stock on an SBR with a 10 inch barrel. With the stock folded its as short as an MP5 with the stock collapsed (very compact). If you want to avoid the SBR portion then do an AR pistol with the law folder.  Add a MAGPUL D60 mag and you have something with increased capacity in a very small package.
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I spent a number of years qualified on the P90 and was able to use it for work as an optional weapon when an M4 wasn't viable. Its a fun gun to shoot and ive never fired a full auto gun that was more controllable,  but i'd never own one personally. The ammo is expensive and balistically there are better options out there. If you do get a PS90, step 1 is the SBR it. For me, and its strictly my opinion, guys who like the P90 (or the MP5 for that matter) are more in love with the concept or cool factor of it. After you shoot it for a while you'll end up getting something else.
Thank you for your insight.

What would you recommend as a "better option"?  

I do have one; I haven't decided whether or not to keep it.

I fear, as you say, I'm "more in love with the concept" than I should be.

Application would be concealable car/travel gun.  I can't think of anything quite as compact you don' have to unfold first.

Thanks.....Pachucko
If you are looking for a compact / concealable travel or car gun and you don't want to deal with the hassle of an SBR then why not an AR pistol or an AR with a LAW folding stock or an AR pistol with a LAW folding stock. I put a LAW folding stock on an SBR with a 10 inch barrel. With the stock folded its as short as an MP5 with the stock collapsed (very compact). If you want to avoid the SBR portion then do an AR pistol with the law folder.  Add a MAGPUL D60 mag and you have something with increased capacity in a very small package.
Thank you again.

I have no interest in the LAW, however I have no problems doing an SBR.

I should have clarified, I have an AR pistol and SBR with 11.5 inch barrels, and a few other compact options.

So several shorties that could/do work, so that is why I love the concept of the PS90, and am sure it will excel in this role, but wasn't 110% sold on making it a "forever gun."

If the ARs are the next best thing, I should probably do it.
Link Posted: 7/9/2017 12:57:53 PM EDT
[#2]
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Quoted:
Thank you again.

I have no interest in the LAW, however I have no problems doing an SBR.

I should have clarified, I have an AR pistol and SBR with 11.5 inch barrels, and a few other compact options.

So several shorties that could/do work, so that is why I love the concept of the PS90, and am sure it will excel in this role, but wasn't 110% sold on making it a "forever gun."

If the ARs are the next best thing, I should probably do it.
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I spent a number of years qualified on the P90 and was able to use it for work as an optional weapon when an M4 wasn't viable. Its a fun gun to shoot and ive never fired a full auto gun that was more controllable,  but i'd never own one personally. The ammo is expensive and balistically there are better options out there. If you do get a PS90, step 1 is the SBR it. For me, and its strictly my opinion, guys who like the P90 (or the MP5 for that matter) are more in love with the concept or cool factor of it. After you shoot it for a while you'll end up getting something else.
Thank you for your insight.

What would you recommend as a "better option"?  

I do have one; I haven't decided whether or not to keep it.

I fear, as you say, I'm "more in love with the concept" than I should be.

Application would be concealable car/travel gun.  I can't think of anything quite as compact you don' have to unfold first.

Thanks.....Pachucko
If you are looking for a compact / concealable travel or car gun and you don't want to deal with the hassle of an SBR then why not an AR pistol or an AR with a LAW folding stock or an AR pistol with a LAW folding stock. I put a LAW folding stock on an SBR with a 10 inch barrel. With the stock folded its as short as an MP5 with the stock collapsed (very compact). If you want to avoid the SBR portion then do an AR pistol with the law folder.  Add a MAGPUL D60 mag and you have something with increased capacity in a very small package.
Thank you again.

I have no interest in the LAW, however I have no problems doing an SBR.

I should have clarified, I have an AR pistol and SBR with 11.5 inch barrels, and a few other compact options.

So several shorties that could/do work, so that is why I love the concept of the PS90, and am sure it will excel in this role, but wasn't 110% sold on making it a "forever gun."

If the ARs are the next best thing, I should probably do it.
Glad I could help. PM me if you have any questions. Good luck.
Link Posted: 7/11/2017 1:04:00 PM EDT
[#3]
The PS90 is one gun I'll never get rid of.
Link Posted: 7/11/2017 4:03:43 PM EDT
[#4]
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Quoted:
The PS90 is one gun I'll never get rid of.
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Yeah I agree.

I dont shoot it often but I love it.

It is the smallest most handy firearm I own.  And the most interesting feature is what another poster already mentioned about it "being an extension" of your own hand.  Nothing else feels like an sbr ps90 does.

Get a urban ert sling.
Link Posted: 7/11/2017 9:32:37 PM EDT
[#5]
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Quoted:
The PS90 is one gun I'll never get rid of.
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My thoughts as well.  There is nothing else like it.
Remember seeing years ago in the back of books in the future weapons section with the gyrojet firearms.
Link Posted: 7/11/2017 10:58:00 PM EDT
[#6]
Link Posted: 7/24/2017 6:53:32 PM EDT
[#7]
This will throw a monkey wrench into the pudding.


I got to play with a .22 TCM double stack pistol and a TCM bolt action rifle again last weekend.

The pistol gets PS90 16 inch carbine ballistics from a 5 inch pistol barrel.
The TCM rifle gives ballistics equivalent to the .22 Hornet. It uses the same magazines as the pistol. The brass is re loadable. The round is based on a shortened version of the 5.56 case and is readily made from such.

There is at least one arfcommer with thread about his DI TCM upper on his AR lower. It uses a mag well adapter and feeds from PPS mags. IIRC heavymetalman ( or something like it ) is the manufacturer.
Link Posted: 7/24/2017 7:07:28 PM EDT
[#8]
Link Posted: 7/24/2017 7:28:53 PM EDT
[#9]
The real issue with .22 TCM is that the cartridge is great, but the bullets are just .22 magnum bullets due to the need to fit into a .45 ACP oal.



An excellent cartridge with a mediocre projectile results in gel tests like this:
https://www.youtube.com/watch?v=7UZWRsUXZWc

While 5.7x28 has a much longer OAL, allowing it use proper .224 spitzer rifle bullets.



So the strength of .22 TCM - that it works in .45 and 9mm pistols - is also its greatest weakness.
Link Posted: 8/11/2017 8:19:00 PM EDT
[#10]
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and weaker than 5.56mm.  
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All relative. 556 is weaker than 50bmg as well.

5.7 was developed to supersede 9mm PDW platforms. Frankly the comparison is silly.
Link Posted: 8/12/2017 6:20:37 AM EDT
[#11]
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People knock the PS90 because of the caliber, frankly I've quit carrying all other handguns except my FiveseveN pistol....why?

Because after reading everything I can find on the 5,7x28 round, I trust it over other calibers to accomplish the job.
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Link Posted: 8/12/2017 6:24:55 AM EDT
[#12]
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Quoted:



All relative. 556 is weaker than 50bmg as well.

5.7 was developed to supersede 9mm PDW platforms. Frankly the comparison is silly.
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It's not a silly comparison, it's a valid one considering most PDWs nowadays are in 5.56 and 5.56 is superior to the 5.7 which has lackluster performance in real world applications.
Link Posted: 8/12/2017 9:55:43 AM EDT
[#13]
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It's not a silly comparison, it's a valid one considering most PDWs nowadays are in 5.56 and 5.56 is superior to the 5.7 which has lackluster performance in real world applications.
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A few seperate things to unwrap there...

1) We agree that 556 is more effective than 5.7 on a round per round basis. We also agree that 308 is more effective than 556 on a round per round basis - so hey, why aren't the troops carrying 308 - something to ponder...
2) 5.7 is more effective on a round per round basis than 9mm. This is for which it was designed. It wasn't designed to replace nuclear war heads. So I'd prefer if we would not bring that up either, I concede it is not very effective intercontinentally.
           a) Do you own a pistol? Share with me some of the cartridges your pistols employ?
3) Round count and total load out weight matter, if you don't believe me refer to the rise of the 556 over the 308.
4) Most PDWs are 556 nowadays - I need a source for that, please.
Link Posted: 8/12/2017 10:45:07 AM EDT
[#14]
Link Posted: 8/12/2017 11:22:16 AM EDT
[#15]
I bought one a couple years ago on sale.  Always wanted one.  I have only shot it a couple of times and it's a crowd pleaser and a really unique platform for a lot of reasons that have already been stated here.  I filed my Form 1 last July right before the cutoff and just recently got approved.  Barrel and engraving are next.  Any recommendations on which barrel and who has stock?  I have a 6" Form 1 Silencer that is Pending and will be using a Griffin Taper mount.
Link Posted: 8/12/2017 12:53:14 PM EDT
[#16]
Link Posted: 8/12/2017 2:30:56 PM EDT
[#17]
Always wanted a PS90 SBR. Finally pulled the trigger on one (well, a 16", which I will SBR post haste).

These are boutique guns, always have been, and always will be. I'd never recommend it over an AR as a first "grown up" rifle for anyone. Parts are hard to get and expensive, ammo is frequently not stocked locally, etc. But there's just something about it that has always drawn me in. Elegant yet futuristic ergonomics, very simple construction and disassembly, microscopic size and weight, virtually zero recoil. I have no illusions that it's as effective as a 5.56, or even a 9mm SBR with good ammo like +P HST. It wouldn't be my first choice to carry into battle. But I already have those bases covered with multiple other rifles, and I just think it's a badass little gun.
Link Posted: 8/13/2017 4:18:03 PM EDT
[#18]
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Quoted:


There is no doubt that the 5.56 is superior to the 5.7x28 but stating that the 5.7x28 "has lackluster performance in real world applications" is utter BULLSHIT!

FORT HOOD SHOOTING...


Using SS192 and SS197SR ammunition (common commercial 5.7x28 ammo), several 20-30 round magazines and an FN 5.7 (shooter also had a .357 revolver but did not use it), Hassan killed 13 and wounded 32 people.

Many armchair ballistics expert criticized this result as proof that the FN 5.7 platform is not lethal enough because of the proportion of the fatalities to the wounded. Others have proposed that had Hassan used another type of pistol, 9mm or .45, there would have been more fatalities.


1. 11 people were shot center-of-mass (COM), one was shot in the stomach and one was shot in the head. All 13 died. All 11 victims who were shot COM did not survive.
2. 3 of the 13 people who died, tried to charge Hassan, but he stopped them with COM shots.
3. The 32 people who were wounded were hit in the arms, legs, hips and shoulders. None of the wounded survivors were shot COM.

The following conclusions can be drawn:
1. The FN 5.7 is a very lethal round CQB because all 11 victims who were shot COM died. No survivors for those hit COM.
2. The FN 5.7 is a real stopper, because 3 tried to charge Hassan at close range and were stopped by COM shots.
3. One of the fatalities was shot in the stomach, and died. The fragmentation of the SS197R round can create a hail of metal shards that can cause serious internal organ damage and bleeding in the stomach.
4. None of the 32 people who were hit in the extremities, hips and shoulders were able to muster a counter-attack because the FN 5.7 must have shattered or broken bones. The high rate of wounded vicitms to fatalities was the direct result of the shooting ability of Hassan (or lack thereof), and not because the 5.7x28 round is not lethal.
5. Sgt. Kimberly Munley (base civilian police), one of the first responders, was immediately disabled with 5.7x28 bullet shrapnels to her wrist and a second 5.7x28 bullet broke her femur. The light 5.7x28 commercial ammo showed that it can shatter large bones due to its velocity. Her femur (the largest bone in the human body) was SHATTERED into 120 pieces.
6. According to medical personnel, there was so much blood in the room that it was difficult to get to the victims because the floor became very slippery. One can conclude that the commercial 5.7x28 rounds can fragment or tumble, causing immense blood loss.
7. It took five bullets (which I assume was a 9 mm) from Sgt Mark Todd to stop Hasan. And he survived his wounds (no available info on where he was hit, except that one of the bullets paralyzed Hasan).

In conclusion:
1. The FN 5.7 is definitely a very lethal round. 100% fatality for COM shots.
2. The FN 5.7 is a man-stopper. Three military men tried to charge Hasan, and all three were stopped.
2. The FN 5.7 is a very incapacitating round, if extremities are hit, because it is powerful enough to break the femur (which is the largest bone in the body)
3. The fragmentation or tumbling effect of commercial ammo can cause a lot of blood loss.

This is a DOCUMENTED real world shooting as compared to "I was told by my brother-in-law who heard it from a gun shop employee" story.

In comparison, here is a LINK to another DOCUMENTED shooting where Officer had to place 17 ROUNDS OF .45 acp in a dirt bag to stop him.

I only carry an FN FiveseveN now as I trust it more than any 9mm, .40 S&W, or .45 acp. The main issue I had was trying to locate a Duty holster and spare magazine carrier.

I carry Elite Ammunition S4M which chronographs OVER 2,400 fps out of the FiveseveN pistol and WILL penetrate Level IIIA body armor. In addition it will penetrate 1 1/4" bullet proof glass.

It's generally excepted that hydrostatic shock begins at 2,000 fps, some studies report it as low as 1,100 fps.

I really have to believe that for the U.S. Secret Service to adopt the 5.7x28 that had pretty good documentation of round performance.
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@PursuitSS I stand corrected and, educated.   I had not seen anything outside of it's attempted use in a SBR'd PS90 for hunting medium size game at about 120-135 yards, thanks for taking the time and effort to write that up!

On that note, while I have no interest in a PS90, I've now become quite interested in the FN 5.7...hmmm
Link Posted: 9/14/2017 4:59:24 PM EDT
[#19]
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Quoted:


The magazines are total SHIT (IF you purchase some of the non-factory mags)

The only part I've heard of failing is the bolt assy cracking, and that's after tens of thousands of rounds.

O.K., you want "talked out" of purchasing one....

Here's a few points....

Zero recoil
Holds 50 rounds
Ammunition prices have dropped significantly
Ammunition is light in weight
Effective to 100 yds +
VERY compact
I love the ergonomics
Using SS198 ammo is 100% reliable
Easy to breakdown and clean

If at this point I haven't talked you out of it I can list more reasons you don't want one.
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How significantly?
Link Posted: 9/14/2017 5:32:44 PM EDT
[#20]
Link Posted: 9/14/2017 5:38:00 PM EDT
[#21]
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Quoted:


Current Federal American Eagle is $14.99 a box of 50 rounds

FN SS197 (Blue Tip) is $17.99 a box of 50 rounds

Both ship free with an order of 10 or more boxes

At Palmetto State Armory
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I can't remember what it used to be but that's cheaper than 38 special. Well ok I guess I need a PS90 now.
Link Posted: 9/26/2017 4:43:23 PM EDT
[#22]
Great little rifles.

The PS90 is certainly the only bullpup I own, because I think most bullpups are stupid.

This post should not discourage anyone from sourcing L85 parts kits, because I'd pay stupid money for one of those.
Link Posted: 9/27/2017 10:48:23 PM EDT
[#23]
I love my PS90.  Bought it mostly for the cool factor and something different for range time.  50 rounds, easy to handle, little felt recoil.  Perfect size wise for just about anyone.  Packs away with plenty of room in the case for ammo and accessories.  Anyone who hasn't seen one goes gaga when they lay eyes on it.   Downward eject bugs me at the bench though.  Get yours sbr'd and get a Sparrow .22 can.   You can buy several upgrades that are easy to install.

I have a couple of rifles all very different eras and types.  Variety is never boring.

Here's my PS90 with an auto on/off Holosun RDS.  Gotta have the auto on/off so I don't have to fiddle with switches in an emergency.


My only beef with the PS90 is the original sight sucks imo and when you install a rail all that vertical space is wasted.  So I designed a rail block that holds a green laser, IR illuminator or flashlight in the space where the original sight was mounted, plus you can mount another optic on the integrated rail.  The working prototype was printed in glass filled nylon.  Works very well although locations for screw holes were a bit off.  Pic shows the laser mounted in the block.  



PS90 is a fun gun and btw did I mention you can buy Skins, Mods and Upgrades galore?  

So did I talk you out of it?
Link Posted: 10/6/2017 4:59:18 PM EDT
[#24]
Just about everything that could be said has......so here's a little PS90 porn as an incentive.

Attachment Attached File
Link Posted: 10/11/2017 8:08:04 AM EDT
[#25]
I’ll add my 2cents.

As noted, all agree that 5.56 has better round ballistics and 9mm is more ubiquitous. All hat said, the PS90 has certain advantages that no other weapon has, and the primary one is not the round, but the compactness and ergonomics.

I have dozens of AR variants, and several 9mm and .45 PDWs (Tp9, ApC9, Uzis, Macs, AR9s, MPx, Scorpion, etc...). Most are SBRs, but I own may pistol variants also. None are as light or compact as the PS90 and even the venerable TP9 (I own two) still suffers from having a 30rd stick mag and the need to deploy a stock for maximum efficacy.

I own two PS90s - one is a second gen that is SBRd and wears a C-More sight and a Specwar 556. It’s very quiet, very compact and very light.

My other PS90 is a permanently suppressed non-SBR. It uses a Griffin Spartan 3 and a Burris FF3. It was more of an experiment to see if it could be done in a Title 1 variant, but is my preferred HD gun.

One thing people keep missing on the PS90 is how unbelievably light it is. Even my tiny 7” AR, which is extremely loud, is heavier. Plus, long box mag or heavy drums add to the equation.
Link Posted: 10/11/2017 3:37:08 PM EDT
[#26]
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Quoted:
I’ll add my 2cents.

As noted, all agree that 5.56 has better round ballistics and 9mm is more ubiquitous. All hat said, the PS90 has certain advantages that no other weapon has, and the primary one is not the round, but the compactness and ergonomics.

I have dozens of AR variants, and several 9mm and .45 PDWs (Tp9, ApC9, Uzis, Macs, AR9s, MPx, Scorpion, etc...). Most are SBRs, but I own may pistol variants also. None are as light or compact as the PS90 and even the venerable TP9 (I own two) still suffers from having a 30rd stick mag and the need to deploy a stock for maximum efficacy.

I own two PS90s - one is a second gen that is SBRd and wears a C-More sight and a Specwar 556. It’s very quiet, very compact and very light.

My other PS90 is a permanently suppressed non-SBR. It uses a Griffin Spartan 3 and a Burris FF3. It was more of an experiment to see if it could be done in a Title 1 variant, but is my preferred HD gun.

One thing people keep missing on the PS90 is how unbelievably light it is. Even my tiny 7” AR, which is extremely loud, is heavier. Plus, long box mag or heavy drums add to the equation.
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Hey, that's a pretty shitty job of talking him out of one, you know?  

Forrest
Link Posted: 10/11/2017 3:52:37 PM EDT
[#27]
Link Posted: 10/12/2017 12:41:57 PM EDT
[#28]
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Quoted:


By far and away your best choice on the barrel is to send yours to Mark McWillis of TROS.

He has shortened OVER 1,200 and they are pretty much identical to a factory P90 barrel.
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I have been thinking about one of these for years, What resurfaced that want is that my local gun shop carries the 5.7x28 american eagle load very cheaply. How much does TROS charge for the barrel cut down? I was probably going to go with him for the PS90 aimpoint mount, but i was looking at CMMG for the barrel as you can now get the 10.4 inch PS90 barrel again, but for $300.
Link Posted: 10/12/2017 1:11:41 PM EDT
[#29]
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Quoted:


I have been thinking about one of these for years, What resurfaced that want is that my local gun shop carries the 5.7x28 american eagle load very cheaply. How much does TROS charge for the barrel cut down? I was probably going to go with him for the PS90 aimpoint mount, but i was looking at CMMG for the barrel as you can now get the 10.4 inch PS90 barrel again, but for $300.
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I used Mark (TROS) and was very pleased.  He had PS90's sbr'd/threaded for can and ready to ship for 1695 but that was 3 years ago.   Not sure what prices are now.   If I had to do it all over again I would go to him for the complete setup from square one again.

Also bought his low mount.  Got a Sparrow 22 can to go with it.   Make sure to get appropriate shim/spacer or you will deform/damage the o ring and have a baffle strike.  I learned that the hard way but Silencerco sent me a new one at no charge.  Great company there.

The ammo is a lot cheaper now as you mentioned.
Link Posted: 10/12/2017 1:18:51 PM EDT
[#30]
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Quoted:
I love my PS90.  Bought it mostly for the cool factor and something different for range time.  50 rounds, easy to handle, little felt recoil.  Perfect size wise for just about anyone.  Packs away with plenty of room in the case for ammo and accessories.  Anyone who hasn't seen one goes gaga when they lay eyes on it.   Downward eject bugs me at the bench though.  Get yours sbr'd and get a Sparrow .22 can.   You can buy several upgrades that are easy to install.

I have a couple of rifles all very different eras and types.  Variety is never boring.

Here's my PS90 with an auto on/off Holosun RDS.  Gotta have the auto on/off so I don't have to fiddle with switches in an emergency.
https://s6.postimg.org/b5y06i87l/100_8708.jpg

My only beef with the PS90 is the original sight sucks imo and when you install a rail all that vertical space is wasted.  So I designed a rail block that holds a green laser, IR illuminator or flashlight in the space where the original sight was mounted, plus you can mount another optic on the integrated rail.  The working prototype was printed in glass filled nylon.  Works very well although locations for screw holes were a bit off.  Pic shows the laser mounted in the block.  

https://s6.postimg.org/6nvpees5t/100_4687.jpg

PS90 is a fun gun and btw did I mention you can buy Skins, Mods and Upgrades galore?  

So did I talk you out of it?
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@HDSledge

That is a fucking awesome! If i ever do buy a PS90 i want one of those!
Link Posted: 10/12/2017 1:42:55 PM EDT
[#31]
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Quoted:

@HDSledge

That is a fucking awesome! If i ever do buy a PS90 i want one of those!
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Hey man I have that artwork of Reagan going full auto riding the dino on a t shirt.   One of my favs.  :)
Link Posted: 10/12/2017 2:07:38 PM EDT
[#32]
Link Posted: 10/13/2017 6:48:39 AM EDT
[#33]
I finally found a PS90 in stock at buds gun shop through their LE sales program and pulled the trigger on it. It will be at my FFL today and I'll be able to pick it up Monday. The form one is on my desk to fill out, mags and ammo are on the way and I'll be getting the D-machine red dot mount and already have a 7 slot mlok rail to get a light on there.


I have been wanting one for a while anyway but this thread put me over the top!
Link Posted: 10/13/2017 12:15:49 PM EDT
[#34]
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Quoted:
I finally found a PS90 in stock at buds gun shop through their LE sales program and pulled the trigger on it. It will be at my FFL today and I'll be able to pick it up Monday. The form one is on my desk to fill out, mags and ammo are on the way and I'll be getting the D-machine red dot mount and already have a 7 slot mlok rail to get a light on there.


I have been wanting one for a while anyway but this thread put me over the top!
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Congratulations you will love it!!
Link Posted: 10/13/2017 1:33:49 PM EDT
[#35]
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Quoted:


Congratulations you will love it!!
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I agree.  You will love it...

And I also extend my congratulations.

All this talk 'forced' me to pull one of my PS90s out of the safe and shoot it again.  Bummer...

I did have an interesting problem, though.  I usually sight the rifle in at 50 yards since to use a 1X red dot on it.  I hit the range last week and realized that I forgot my spotting scope or binos and, being old, I can't see the .22 holes at 50 yards with my naked eyes, especially when there are no holes on the target!  It was really busy at the range with even some older (than me) guys sleeping at the bench (not really, but you know what I mean), so I couldn't run back and forth to the target, so I just packed it in for the day.

I originally had a Vortex Strikefire II on the rifle, mounted as low as possible on the rail.  While I really like the Strikefire II on ARs (and use them on several rifles), I didn't like the tunnel vision through it on the PS90 (especially with the flip-up lens caps still on the scope), so I replaced it with a Vortex Razor red dot some time back.  I had (what I thought) sighted it in at the time (about a year ago).

Yesterday, I took the PS90 out again and shot at 25 yards first, with one hole somewhat low and centered, and the other two (of three rounds fired) about seven inches to the right (and almost touching each other).  Clearly, something wasn't quite right, so I packed the PS90 up and shot a couple of other things before leaving.  I didn't fiddle with it at the range because I forgot (I remembered the binos, though) the tiny allen wrench used to adjust the bullet strike (yup, that's me, Mr. Prepared).

I pushed a couple of patches through the PS90 at the shop and, when I got home, I took a closer look at it.

What I found was that the Razor was really loose on it's mount on the rail (mount was tight, the Razor was loose on it).  The Razor is shipped with the rail mount attached (held on by two screws).  I must never have checked that it was tight when I first mounted the sight on the PS90.  Since my original sight-in worked well, it must have been 'shifted' to one side for all the shots.

Now it's tight and the next trip to the range will be better.

I'm sure that there's some lesson to be learned in all this, but I'm probably too stupid to learn it...

Forrest
Link Posted: 10/13/2017 2:14:32 PM EDT
[#36]
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Quoted:

What I found was that the Razor was really loose on it's mount on the rail (mount was tight, the Razor was loose on it).  The Razor is shipped with the rail mount attached (held on by two screws).  I must never have checked that it was tight when I first mounted the sight on the PS90.  Since my original sight-in worked well, it must have been 'shifted' to one side for all the shots.

Now it's tight and the next trip to the range will be better.

I'm sure that there's some lesson to be learned in all this, but I'm probably too stupid to learn it...

Forrest
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Loctite Blue 242 for loose nuts, etc.  :)
Link Posted: 10/14/2017 12:00:32 PM EDT
[#37]
Darn it Arfcom! You were supposed to talk the OP out of a PS90, not talk me into one!
Link Posted: 10/14/2017 12:14:17 PM EDT
[#38]
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Quoted:


Loctite Blue 242 for loose nuts, etc.  :)
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Hey, you calling me a loose nut?

Yeah, I know, if the shoe fits and all that...

Forrest
Link Posted: 10/22/2017 8:32:01 AM EDT
[#39]
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Quoted:
I finally found a PS90 in stock at buds gun shop through their LE sales program and pulled the trigger on it. It will be at my FFL today and I'll be able to pick it up Monday. The form one is on my desk to fill out, mags and ammo are on the way and I'll be getting the D-machine red dot mount and already have a 7 slot mlok rail to get a light on there.


I have been wanting one for a while anyway but this thread put me over the top!
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The D-machine mounts are awesome. Mine was a very tight fit - I tamped it down using a nail set inside a plastic protector to avoid marring the finish, but now it is rock solid.

Bud's also has good prices on the 10" CMMG SBR barrels and 1/2-28 adapters if anyone is in the market. The price difference between buying a drop-in barrel and sending to TROS was less than $100, so I went with the CMMG. TROS can have long wait times.
Link Posted: 10/22/2017 3:00:27 PM EDT
[#40]
Always wanted a PS90 SBR, however, when it came time for me to upgrade my trunk gun, the performance characteristics of the 5.56, coupled with my pre-existing support structure for the AUG led me to buy yet another AUG. In my particular application, it makes more sense to have 5.56 on tap, despite the additional weight of the platform.

I have no regrets, but I still want an SBR'd PS90. Some day when I can once again justify $2000+ recreational items...
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