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Posted: 9/6/2017 4:07:12 PM EDT
[#1]
Got a Sprinco orange on hand to use with my AP 308 carbine buffer kit to hopefully fix my lack of bolt hold open, weak ejection and gouges put into back of brand new magazine follower.
The spent cases appear in slowmo video to hit the deflector then go back into the ejection port and bounce around. 18" BA barrel, AP nitride bcg and SLR adj gas block. |
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Posted: 9/6/2017 4:27:55 PM EDT
[#2]
Quote HistoryQuoted:
I've got a few parts laying around or on other rifles. I may swap some stuff around and see what I can remedy before buying new parts. I guess this is part of the fun of building a .308?  |
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Posted: 9/6/2017 7:42:39 PM EDT
[#3]
Quote HistoryQuoted:
Are you trying to use AR15 parts (mag button, bolt catch) on it? IIRC the 308 parts are proprietary. I used an Aero mag button which is longer and a DPMS 308 bolt catch (Aero's catch seems to break a lot). |
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Posted: 9/6/2017 11:50:42 PM EDT
[#4]
Quote HistoryQuoted:
I mostly pieced my lower parts together in the 308 AR section on Primary Arms. Chalk it up as lessons learned I suppose. The Geissele bolt catch you picked up is AR-15 only. You need a standard DPMS-style .308 bolt catch. Seekins makes an enhanced bolt catch which will install fine on the lower, but it won't work with the Aero M5 upper (I learned that one from my own experience). The upper has a recess for the upper paddle of the bolt catch that isn't wide enough for anything other than the standard style so just stick to the standard style. If my Aero bolt catch breaks I'll probably go with a DPMS piece. |
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Posted: 9/7/2017 1:30:34 PM EDT
[#5]
So I've mocked up the complete ass end to an AR 308 build- all Aero except for the MagPul stock, pistol grip, and BCM Gunfighter charging handle. I'm just waiting on the barrel, gas block, gas tube, handguard, and optic.
The Aero recoil spring is super stiff. I have FAL's, a PTR91, and French MAS's, and none of them have even close to that amount of spring resistance. I've tried light coats of grease and oil (switched back to grease. Again, light coat.). Should I trim a coil or two off? Switch springs? Will it noticeably break in with use? |
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Posted: 9/7/2017 1:40:45 PM EDT
[#6]
Quote HistoryQuoted:
So I've mocked up the complete ass end to an AR 308 build- all Aero except for the MagPul stock, pistol grip, and BCM Gunfighter charging handle. I'm just waiting on the barrel, gas block, gas tube, handguard, and optic. The Aero recoil spring is super stiff. I have FAL's, a PTR91, and French MAS's, and none of them have even close to that amount of spring resistance. I've tried light coats of grease and oil (switched back to grease. Again, light coat.). Should I trim a coil or two off? Switch springs? Will it noticeably break in with use? I'd hold off until you've shot it. No sense creating a problem if one doesn't exist. |
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Posted: 9/7/2017 1:53:17 PM EDT
[#7]
That's what I'm thinking, but man is this bitch tough to rack (yes, I go to the gym.
 ). It is very smooth, so it doesn't feel like anything is binding anywhere.
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Posted: 9/7/2017 9:13:08 PM EDT
[#8]
Can anybody help me out with the AP barrel nut install?
Got my hand guard today, looks great, instructions would have been even better. Must have been optional. |
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Posted: 9/7/2017 10:38:07 PM EDT
[#9]
Quote HistoryQuoted:
Are you trying to use AR15 parts (mag button, bolt catch) on it? IIRC the 308 parts are proprietary. I used an Aero mag button which is longer and a DPMS 308 bolt catch (Aero's catch seems to break a lot). ConKeeper, you might want to try the Phase 5 Tactical Phase 5 Tactical Extended Bolt Release . This is a 308 part, I have one installed on my Aero, and it works great. |
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Posted: 9/7/2017 11:12:03 PM EDT
[#10]
Just wondering what the torque value/range is.
I am seeing anywhere from 35 FT/LBS for an AR15 to 65 for a 308. So what are you guys going by |
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Posted: 9/8/2017 1:20:13 AM EDT
[#11]
Quote HistoryQuoted:
Just wondering what the torque value/range is. I am seeing anywhere from 35 FT/LBS for an AR15 to 65 for a 308. So what are you guys going by |
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Posted: 9/8/2017 3:17:45 AM EDT
[#12]
Has anyone tried the Forward Controls ABC/R Bolt Catch in an M5?
http://forwardcontrolsdesign.com/ABCR-v2-762mm_p_93.html |
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Posted: 9/8/2017 11:44:14 AM EDT
[#13]
Quote HistoryQuoted:
When I was trying to help him I didn't even catch that he was installing an AR15 part, so you hit it on the head. ConKeeper, you might want to try the Phase 5 Tactical Phase 5 Tactical Extended Bolt Release . This is a 308 part, I have one installed on my Aero, and it works great. |
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Posted: 9/8/2017 12:52:55 PM EDT
[#14]
Quote HistoryQuoted:
Just got a bunch of parts back from cerakote and I'm starting to assemble. Two issues I may have already. Does anyone have a Geissele maritime bolt catch installed. It fits but isn't moving. Also installed a Strike Industries enhanced mag catch. The button is only engaging the threads by a few turns. Is this normal for either part? Hate to have hit a wall already. LR-308 Bolt Catch |
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Posted: 9/10/2017 12:01:20 PM EDT
[#15]
Figured out my issue: Rifle-length spring in carbine buffer tube. JP spring of the proper length ordered and inbound.
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Posted: 9/10/2017 6:51:42 PM EDT
[#16]
Would not lock back suppressed even with gas block all the way open, but suppressed (at only 5 clicks open), the orange spring made a noticeable difference in felt recoil and ejection improved a lot. Bolt locked back every time.
Quote HistoryQuoted:
Got a Sprinco orange on hand to use with my AP 308 carbine buffer kit to hopefully fix my lack of bolt hold open, weak ejection and gouges put into back of brand new magazine follower. The spent cases appear in slowmo video to hit the deflector then go back into the ejection port and bounce around. 18" BA barrel, AP nitride bcg and SLR adj gas block. |
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Posted: 9/11/2017 7:06:10 PM EDT
[#17]
A little bump in the road during my install...
My Spike's Tactical barrel nut wrench won't fit over my barrel. Awesome Spike's barrel wrench 
This tool is perfect and excellent for removing Colt AR15 barrel nuts you would swear were welded on. Broke every nut free w/o damage. It is a godsend for any tough 5.56 GI barrel nut on a 5.56 barrel. But won't fit around my .308 Criterion barrel. The Spike's tool surrounds the barrel nut a bit more than half way, and the greater diameter of the .308 barrel make it a no-go for this job. Not Spike's fault. I was trying to make the tool do something it was not designed to do. It was not meant to fit around a .308 barrel. So I'll need a wrench to finish this project. I ordered a Weaponwerx Ar Combo Armorer Wrench today. This wrench 
I hope to get everything torqued down properly when this wrench gets here! Mocked up  Attached File |
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Posted: 9/14/2017 7:24:13 PM EDT
[#18]
Quote HistoryQuoted:
A little bump in the road during my install... My Spike's Tactical barrel nut wrench won't fit over my barrel. Awesome Spike's barrel wrench http://cdn-us-cf2.yottaa.net/53ff2f503c881650e20004c9/www.brownells.com/v~13.88/userdocs/products/p_100014395_1.jpg?yocs=p_&yoloc=us This tool is perfect and excellent for removing Colt AR15 barrel nuts you would swear were welded on. Broke every nut free w/o damage. It is a godsend for any tough 5.56 GI barrel nut on a 5.56 barrel. But won't fit around my .308 Criterion barrel. The Spike's tool surrounds the barrel nut a bit more than half way, and the greater diameter of the .308 barrel make it a no-go for this job. Not Spike's fault. I was trying to make the tool do something it was not designed to do. It was not meant to fit around a .308 barrel. So I'll need a wrench to finish this project. I ordered a Weaponwerx Ar Combo Armorer Wrench today. This wrench http://www.weaponwerx.com/wp-content/uploads/2015/04/9269342539_052daa9080_b.jpg I hope to get everything torqued down properly when this wrench gets here! Mocked up https://www.AR15.Com/media/mediaFiles/355715/AP_mocked_up-305110.JPG Weaponwerx Ar Combo Armorer Wrench fits and will work for my barrel. I'll finish this up on Saturday at work. I left my tools there knowing I'd be back... |
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Posted: 9/17/2017 7:38:55 PM EDT
[#19]
Quote HistoryQuoted:
Got a Sprinco orange on hand to use with my AP 308 carbine buffer kit to hopefully fix my lack of bolt hold open, weak ejection and gouges put into back of brand new magazine follower. The spent cases appear in slowmo video to hit the deflector then go back into the ejection port and bounce around. 18" BA barrel, AP nitride bcg and SLR adj gas block. |
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Posted: 9/17/2017 7:50:00 PM EDT
[#20]
Snerticus thanks for the intel on the Weaponwerx wrench. I'll be using it on my upcoming AR10 (AP M5 based) build.
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Posted: 9/17/2017 9:09:04 PM EDT
[#21]
Quick question, will the Armalite AR-10A bolt catch fit the M5 lower?
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Posted: 9/18/2017 10:53:50 AM EDT
[#22]
Quote HistoryQuoted:
Snerticus thanks for the intel on the Weaponwerx wrench. I'll be using it on my upcoming AR10 (AP M5 based) build. You're welcome! Weaponwerx shipped priority mail and I had the wrench in 3 days. Nice wrench too. I don't see myself wearing it out or it breaking. I was pleased w/ the quality feel and the exact fit. And good luck w/ your build! |
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Posted: 9/18/2017 9:50:23 PM EDT
[#23]
Quote HistoryQuoted:
Quick question, will the Armalite AR-10A bolt catch fit the M5 lower? |
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Posted: 9/20/2017 8:09:33 PM EDT
[#24]
So what ammo is good for running through ballistic barrels? I am looking at 146 gr is that too low?
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Posted: 9/20/2017 9:00:01 PM EDT
[#25]
Has anyone used an extended rear takedown pin for their M5? I'm working on a build but need an extended rear takedown pin for our garbage laws in NY. Just looking for some ideas and to see maybe what has worked for you guys? Or if you have an extra PM me and we can work something out. But so far, aero builders kit in FDE from Schuyler's, a carbine buffer kit, aero LPK, and a magpul UBR 2 stock on the way.and by the way, It's my first AR-10 build.
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Posted: 9/20/2017 10:43:44 PM EDT
[#26]
Anyone aware of issues with early production 20rd lr/sr pmags not dropping free? I have two with date stamp of 11/2013, both are new in package, neither will drop free from a recent production M5 lower. I went and bought new 20 & 25rd 2017 produced mags and both drop free. I'm going to contact Magpul and I'm sure they'll take care of me, just curious if there were problems early on or if I got a bad lot.
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Posted: 10/2/2017 8:16:39 PM EDT
[#27]
Quote HistoryQuoted:
http://www.arcticchat.com/forum/attachments/hunting-shooting/237866d1419091596-gun-thread-uploadfromtaptalk1419091598588.jpg http://www.arcticchat.com/forum/attachments/hunting-shooting/237867d1419091606-gun-thread-uploadfromtaptalk1419091608457.jpg http://www.arcticchat.com/forum/attachments/hunting-shooting/237948d1419289281-gun-thread-uploadfromtaptalk1419289283224.jpg Completed http://www.arcticchat.com/forum/attachments/hunting-shooting/238122d1419700269-gun-thread-uploadfromtaptalk1419700272091.jpg Anyways I found this thread. Can anyone tell me what pistol grip he has here? GreenGoblin hasnt posted since 2015, so I figured I would ask. I am checking through a few sites to see if I can identify it. |
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Posted: 10/4/2017 9:09:25 PM EDT
[#28]
Finally got my build assembled today. Only took me about a year and half to gather all my parts. I just hope it shoots well without any major issues. So here's what I got: AP M5 upper/lower Magpul Gen 3 PRS Armalite buffer tube DPMS rifle buffer spring KAK heavy buffer Larue A-PEG grip Geissele SSA-E ArmaSpec short throw selector and anti walk pins DPMS bolt catch BCM Gunfighter CH medium latch AP black nitride BCG DPMS quad rail (EE score) JP adjustable gas block WMD nitromet gas tube BA Premium 20" Surefire SOCOM 762 brake I think that's everything Oh, and cerakote was done by a friend/coworker/local guy |
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Posted: 10/6/2017 6:50:01 PM EDT
[#29]
Aero Precision M5 FDE Builders Kit
Mega 18" barrel 1/10 Twist Aero Precision Gas Block Precision Armament M4-72 Severe Duty Compensator Radian Raptor FDE 308 Charging Handle DPMS LR-308 Bolt Carrier Group Aero Precision 30mm Scope Mount Trijicon Accupoint TR23-1 5-20X50G Magpul MLOK FDE Type 1 Covers Magpul ACS stock w/ Limbsaver Precision Fit Recoil Pad MOE+ Pistol Grip Aero Precision LPK Geissele God Bless Texas SD-E Trigger Phase 5 Tactical Extended Bolt Release Kaw Valley Precision 5.6oz Buffer Sprinco Orange Buffer Battle Arms Bad-Ass Ambi Safety 
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Posted: 10/6/2017 10:06:16 PM EDT
[#30]
Last two posts.... NICE rifles!
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Posted: 10/6/2017 11:55:01 PM EDT
[#31]
Those last ones are making me think my next build will have to be in FDE.
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Posted: 10/7/2017 12:06:54 AM EDT
[#32]
My PA-10, gen 2, complete ACS-L lower is on the way. This thread is relative to my interest. Want Aero upper.
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Posted: 10/7/2017 4:52:38 PM EDT
[#33]
Quote HistoryQuoted:
Those last ones are making me think my next build will have to be in FDE. |
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Posted: 10/7/2017 5:11:56 PM EDT
[#34]
Quote HistoryQuoted:
This entire thread has me convinced my next AR build is FDE. |
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Posted: 10/8/2017 3:35:25 PM EDT
[#35]
Thanks! I'm hoping that scouring this thread for the duration of the build will help me avoid some of the common issues. Hoping to get some glass here in the near future and get it out to the range.
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Posted: 10/8/2017 7:30:00 PM EDT
[#36]
Aero upper and lower Lantac BCG BCM mod 4 charging handle SiCo ASR flash hider CMT Mod 1 rail Miad grip UBR 2.0 Faxon firearms match .308 fluted 20" 5R rifling barrel Geissele SSA Aero LPK Jp silent capture SLR adjustable GB Leupold ims mark 4 Leupold mark 4 ER/T 6.5-20 Receivers and rail cerakoted patriot brown. The stock and grip came in FDE. I used Alumahyde magpul fde on the Leupold IMS mount. |
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Posted: 10/10/2017 11:28:50 AM EDT
[#37]
Quote HistoryQuoted:
http://i66.tinypic.com/141v960.jpg Aero upper and lower Lantac BCG BCM mod 4 charging handle SiCo ASR flash hider CMT Mod 1 rail Miad grip UBR 2.0 Faxon firearms match .308 fluted 20" 5R rifling barrel Geissele SSA Aero LPK Jp silent capture SLR adjustable GB Leupold ims mark 4 Leupold mark 4 ER/T 6.5-20 Receivers and rail cerakoted patriot brown. The stock and grip came in FDE. I used Alumahyde magpul fde on the Leupold IMS mount. |
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Posted: 10/10/2017 7:27:37 PM EDT
[#38]
Quote HistoryQuoted:
http://i66.tinypic.com/141v960.jpg Aero upper and lower Lantac BCG BCM mod 4 charging handle SiCo ASR flash hider CMT Mod 1 rail Miad grip UBR 2.0 Faxon firearms match .308 fluted 20" 5R rifling barrel Geissele SSA Aero LPK Jp silent capture SLR adjustable GB Leupold ims mark 4 Leupold mark 4 ER/T 6.5-20 Receivers and rail cerakoted patriot brown. The stock and grip came in FDE. I used Alumahyde magpul fde on the Leupold IMS mount. This project started with an extra 16" Faxon barrel. I figured I can't let it just lay around, so I started a new Aero build.... :D 
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Posted: 10/13/2017 11:11:31 AM EDT
[#39]
Thanks man!
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Posted: 10/13/2017 11:21:18 AM EDT
[#40]
Quote HistoryQuoted:
@Steven11b Sweet looking rifle. I love that rail. I have one on a current work in progress build. The only thing I would change about your build would be the UBR swapped out for a SOPMOD. Other then that excellent choice of parts!!!! This project started with an extra 16" Faxon barrel. I figured I can't let it just lay around, so I started a new Aero build.... :D https://i.imgur.com/UZZS2Y4.jpg Quote HistoryQuoted:
Quoted:
http://i66.tinypic.com/141v960.jpg Aero upper and lower Lantac BCG BCM mod 4 charging handle SiCo ASR flash hider CMT Mod 1 rail Miad grip UBR 2.0 Faxon firearms match .308 fluted 20" 5R rifling barrel Geissele SSA Aero LPK Jp silent capture SLR adjustable GB Leupold ims mark 4 Leupold mark 4 ER/T 6.5-20 Receivers and rail cerakoted patriot brown. The stock and grip came in FDE. I used Alumahyde magpul fde on the Leupold IMS mount. This project started with an extra 16" Faxon barrel. I figured I can't let it just lay around, so I started a new Aero build.... :D https://i.imgur.com/UZZS2Y4.jpg I shot it yesterday for the first time with handloads only, it shot 3 different loads right under 1" at 125yds(grass was blocking my 100yd view). Set the gas block at the 8th click from closed and it was ejecting and cycling perfect across the board(without the suppressor). The brass did have a lot of "rings" blemished all around them for some reason. I am thinking its the coating that Faxon Used? That Miad 1.1 grip I had to dremel the inside to get it to fit properly and the ejection port cover rod had to be shortened as it hit the rail not allowing it to mate up to the receiver. |
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Posted: 10/13/2017 11:32:19 AM EDT
[#41]
What kind of accuracy are you all seeing out of these? I'm hoping to buy one here shortly and I don't need anything special just accurate enough to build my skill set
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Posted: 10/13/2017 11:53:44 AM EDT
[#42]
Quote HistoryQuoted:
I used the UBR because I wanted the extra weight added to help balance it out. I shot it yesterday for the first time with handloads only, it shot 3 different loads right under 1" at 125yds(grass was blocking my 100yd view). Set the gas block at the 8th click from closed and it was ejecting and cycling perfect across the board(without the suppressor). The brass did have a lot of "rings" blemished all around them for some reason. I am thinking its the coating that Faxon Used? That Miad 1.1 grip I had to dremel the inside to get it to fit properly and the ejection port cover rod had to be shortened as it hit the rail not allowing it to mate up to the receiver. |
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Posted: 10/13/2017 2:02:52 PM EDT
[#43]
Quote HistoryQuoted:
What kind of accuracy are you all seeing out of these? I'm hoping to buy one here shortly and I don't need anything special just accurate enough to build my skill set |
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Posted: 10/13/2017 2:06:01 PM EDT
[#44]
Quote HistoryQuoted:
What kind of accuracy are you all seeing out of these? I'm hoping to buy one here shortly and I don't need anything special just accurate enough to build my skill set |
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Posted: 10/13/2017 2:52:40 PM EDT
[#45]
Has anyone used the VLTOR RE10-A5SR buffer tube on the M5 build?
Working on an Aero M5 based .308 build and I need the correct buffer and spring type. The reason I ask type is due to the fact I'm using a VLTOR RE10-A5SR extension. I double tapped with Slash and he told me carbine buffer (XH) and rifle length spring. I assume he's the man when it comes to this as that is his business but I'm wondering if anyone else has anything to add. I know it's specifically known that you use a carbine length buffer in a AR10 due to he extra length on the AR10 BCG. I assume you use the rifle length buffer spring due to the longer VLTOR RE10-A5SR extension. I did roughly measure the VLTOR tube compared to the tube in my present AR15 from the threads back, the VLTOR is about 1/2-5/8" longer than a standard buffer tube. I just need some reassurance I'm not buying crap I don't need. Buy once, cry once. Any help is appreciated. |
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Posted: 10/13/2017 3:06:01 PM EDT
[#46]
Quote HistoryQuoted:
The Faxon barrel? Quote HistoryQuoted:
Quoted:
What kind of accuracy are you all seeing out of these? I'm hoping to buy one here shortly and I don't need anything special just accurate enough to build my skill set |
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Posted: 10/13/2017 5:41:22 PM EDT
[#47]
Quote HistoryQuoted:
I thought it was a Ballistic Advantage barrel? Whatever the stock, straight from Aero complete gun has. I'm probably going to get both .308 and 6.5CM uppers but only one lower |
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Posted: 10/13/2017 6:06:33 PM EDT
[#48]
With the Aero receivers are you guys having to use spacers to get the hand guard nut timed ?
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Posted: 10/14/2017 12:45:07 AM EDT
[#49]
Quote HistoryQuoted:
With the Aero receivers are you guys having to use spacers to get the hand guard nut timed ? |
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Posted: 10/14/2017 1:11:31 AM EDT
[#50]
I'm super tempted to put together one with a pinned and welded 14.5" barrel.
Anyone have one? |
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