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Posted: 1/9/2021 12:09:29 PM EDT
[Last Edit: ahrion]
[#1]
Quote HistoryOriginally Posted By backbencher: I've held a JP aluminum carrier. It's crazy light. I have a shooting innovation aluminum carrier. Guess they don't sell them anymore. Never used it, although super light. |
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WI, USA
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Posted: 1/12/2021 3:36:17 PM EDT
[#2]
My lightweight rifle has the JP aluminum carrier, it IS crazy light. Highly recommend you pair it with a New Frontier polymer hammer/trigger group with it. Originally I had a velocity trigger pack and even with a curved tip on the hammer it beat up the bottom surface a bit which is why the JP states that their aluminum carriers have a limited lifespan. I sanded it back smooth(ish)/took out the bigger bumps after I replaced it with the NFA kit and the polymer hammer hasn't done anything to it.
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MN, USA
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Posted: 1/15/2021 8:43:30 AM EDT
[#3]
Figured I'd post up here before the EE. I have a Halosun HS503G w/ACSS reticle on a absolute co-witness Fortis F1 which a swapped the steel cross bolts for Ti. 4.2 oz for the whole shebang!
Low mount and lower 1/3 also included I got it all set up and went out to shoot only to realize my astigmatism was worse than I thought. Still usable if I look through a rear peep sight but I'm getting a Primary Arms GLX 2X to replace it. I'm looking to get $230 shipped for the whole setup. That's what the going rate seems to be for a new HS503G and you get the UL mount for free! Pictures linked below: 
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Posted: 1/16/2021 4:17:35 AM EDT
[#4]
Quote HistoryOriginally Posted By BKKJ: Figured I'd post up here before the EE. I have a Halosun HS503G w/ACSS reticle on a absolute co-witness Fortis F1 which a swapped the steel cross bolts for Ti. 4.2 oz for the whole shebang! Low mount and lower 1/3 also included I got it all set up and went out to shoot only to realize my astigmatism was worse than I thought. Still usable if I look through a rear peep sight but I'm getting a Primary Arms GLX 2X to replace it. I'm looking to get $230 shipped for the whole setup. That's what the going rate seems to be for a new HS503G and you get the UL mount for free! Pictures linked below: https://photos.app.goo.gl/s2J51KTFFHvBLsGH9 I'll take this. Email sent. |
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AZ, USA
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Posted: 1/17/2021 10:29:47 PM EDT
[#5]
Got in one of the KE Arms KP-15 lowers to try out on my lightweight build, and I gotta say, I like it a lot. Dropped the weight from 5lbs 1oz to 4lbs 14.5oz without mag or sling. I prefer fixed stocks anyway so it feels like a no-brainer for me.
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NE, USA
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Posted: 1/20/2021 10:11:47 AM EDT
[#6]
withoutremorse42 do you still need some of those lightweight parts for your build? I havent checked the forum in a couple days.
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Posted: 1/20/2021 2:57:20 PM EDT
[#7]
Quote HistoryOriginally Posted By mnkyco: withoutremorse42 do you still need some of those lightweight parts for your build? I havent checked the forum in a couple days. @mnkyco I still need a Luth-AR 601 triangle CH DSA Low mass Sand Cut BCG and a Ti grip screw, but I'm down to strictly trade mode. Already went WAY over budget for this article |
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NE, USA
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Posted: 1/20/2021 5:28:54 PM EDT
[#8]
Ok, I IMed you.
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USA
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Posted: 2/21/2021 10:08:55 PM EDT
[#9]
Anyone have the weight of the X-15 HXP skeletonized drum magazine from X-products?
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Posted: 2/22/2021 1:59:39 PM EDT
[#10]
after a great trade with @mnkyco I'm down to 3 lbs 3.3 oz for my rifle. Still have a couple small parts I can swap out, but I think I'm just about as far as I can go without drilling. Dont think I'll make it to sub 3lbs. It will be in the 4 lbs range with suppressor and optic though!
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WA, USA
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Posted: 2/22/2021 2:34:40 PM EDT
[Last Edit: JerDerv]
[#11]
Quote HistoryOriginally Posted By withoutremorse42: after a great trade with @mnkyco I'm down to 3 lbs 3.3 oz for my rifle. Still have a couple small parts I can swap out, but I think I'm just about as far as I can go without drilling. Dont think I'll make it to sub 3lbs. It will be in the 4 lbs range with suppressor and optic though! Have you shot it yet? |
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Posted: 2/22/2021 7:17:23 PM EDT
[Last Edit: withoutremorse42]
[#12]
Quote HistoryOriginally Posted By JerDerv: Have you shot it yet? That was yesterday, felt froggy today. Shot it and got the adjustable gas block dialed in. Went unsuppressed until it cycled, opened it one click more, then ran with suppressor. Ran well with cheap russian crap. Next up is zeroing and grouping, once my hip is healed enough to shoot prone. Absolutely laughable recoil. Not that .223 has a lot to start with, but this was just a hair more than my 10/22. The 3d printed buttstock is still very much a prototype. I opted for the buffer tube with no boss on it, so the stock is free to spin a bit despite being bolted down as tight as it can be. The DSA BCG, tubb flat spring and taccom 3g buffers are an awesome combo. I suppose I should put the SLR gas block in that list too since that's what's balancing the force-to-mass ratio. |
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TX, USA
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Posted: 3/11/2021 5:31:17 PM EDT
[#13]
New to the forum and the thread. But I wanted to add that I found a Fostech lite upper in tungsten color at my local shop- purchased it and took home to weigh. This thing is 4.3 ounces
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Posted: 3/12/2021 1:03:04 AM EDT
[#14]
Quote HistoryOriginally Posted By dejo: New to the forum and the thread. But I wanted to add that I found a Fostech lite upper in tungsten color at my local shop- purchased it and took home to weigh. This thing is 4.3 ounces @dejo Welcome! Always glad to have new blood. Fostech fight lite series receivers are a great start to an ultralight build. I know there's way over a hundred pages in this thread, but it seems like you can click on nearly any at random and see some cool stuff. |
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TX, USA
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Posted: 3/16/2021 11:34:39 AM EDT
[#15]
My build is currently at 3lb 14.2ounces. I have a 2a Armament barrel on the way that should drop 3.5 ounces from my current Odinworks barrel, I also have already received the 2A Armament Titanium Regulated Bolt Carrier that should drop another 2.5 ounces. And also have a JMT poly lower coming that should save another .6 ounces to put me just under 3lbs 8ounces total. That does not include any sights though.
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FL, USA
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Posted: 3/17/2021 9:40:48 PM EDT
[#16]
Quote HistoryOriginally Posted By dejo: My build is currently at 3lb 14.2ounces. I have a 2a Armament barrel on the way that should drop 3.5 ounces from my current Odinworks barrel, I also have already received the 2A Armament Titanium Regulated Bolt Carrier that should drop another 2.5 ounces. And also have a JMT poly lower coming that should save another .6 ounces to put me just under 3lbs 8ounces total. That does not include any sights though. Sounds like a nice build. You’ll have to post some pics when it’s done. What are you putting on it for sights? |
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TX, USA
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Posted: 3/17/2021 10:27:33 PM EDT
[#17]
I have a Vortex Spitfire HD Gen2 5x that may go on it. All the fight for a light piece only to put a 10.6 ounce optic on it. My eyes arent young enough to work with buis only
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TX, USA
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Posted: 3/18/2021 9:16:21 AM EDT
[#18]
Here is a picture on the scale before my next iteration of this build. I expect a 6.8 ounce drop in weight once my parts come in.
 Upper Odin Works 16.1 ultralite 223 Wylde 22.6 ounces V Seven Micro Brake .8 ounces 2a Armament .750 Ti Gas Block .7 ounces Fostech lite Upper 4.3 ounces Smoke Composites 12" handguard w/pic rail 7.1 ounces Faxon Gunner BCG 8.5 ounces Milspec Charge Handle 1.1 ounces Strike Industries Forward Assist .2 ounces Lower JMT Gen 2 Poly Lower 5.1 ounces Taccom Buffer 1.1 ounces Nemo 300blk Lightweight Spring 1.1 ounces Smoke Composites 10.1" Closed Shoulder Stock 5.3 ounces Smoke Composites Castle Nut .2 ounces NFA Poly LPK Timbercreek Liteweight Pins .2 ounces Timbercreek Endplate .2 ounces Hogue Grip 1.5 ounces |
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TX, USA
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Posted: 3/18/2021 9:18:06 AM EDT
[Last Edit: dejo]
[#19]
Fostech Fighter Lite Upper on scale. https://imgur.com/4fThzkt
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FL, USA
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Posted: 3/19/2021 4:03:24 PM EDT
[#20]
Quote HistoryOriginally Posted By dejo: I have a Vortex Spitfire HD Gen2 5x that may go on it. All the fight for a light piece only to put a 10.6 ounce optic on it. My eyes arent young enough to work with buis only Lol, I put a LPVO on one of my LW builds, I think it’s still in the low 4’s though. I’m 62 and vision impaired as well! I do like red dots for the reason I can use my regular glasses. There are a few great lightweight RD’s out there. Can’t see the pic BTW, may be your post count, not sure. |
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Posted: 3/19/2021 7:02:46 PM EDT
[#21]
Quote HistoryOriginally Posted By dejo: Fostech Fighter Lite Upper on scale. https://imgur.com/4fThzkt 
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TX, USA
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Posted: 3/20/2021 6:32:51 AM EDT
[#22]
I noticed in some of the threads that some were getting weights of 4.8 ounces for that same upper. I felt lucky when I weighed it.
Seems my barrel may finally make it to me as USPS shows it to be in town but also show delivery for Monday. Hoping for a bit more luck |
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TX, USA
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Posted: 3/20/2021 6:41:01 AM EDT
[#23]
My LPVO is the Burris XTR 2 1-8 SFF and that thing is a cow. Wonderful glass and build, but at 25 ounces I am not sure it will see any regular duty on this piece
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FL, USA
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Posted: 3/20/2021 9:45:16 AM EDT
[Last Edit: larrys]
[#24]
Quote HistoryOriginally Posted By dejo: My LPVO is the Burris XTR 2 1-8 SFF and that thing is a cow. Wonderful glass and build, but at 25 ounces I am not sure it will see any regular duty on this piece I went with the Leupold 1.5-5x20 at 9oz and the Aero mount. The gun weighs 4.4 lbs with the scope. I’ve only got one range trip on the scope, but I liked it a lot. It’s a low cost scope, so I kept that in mind. |
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TX, USA
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Posted: 3/20/2021 11:17:50 AM EDT
[#25]
I have found a Leupold vx-r patrol 1.25-4 for $525 but at that price I would rather wait and see what the vx-3hd 1.5-5 looks like. wanting the illuminated one and not sure if it is even available yet
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USA
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Posted: 5/4/2021 10:50:59 PM EDT
[Last Edit: asorel]
[#26]
After a long and not very productive search, I've concluded that for steel 5/8-24 threaded flash hiders, you really can't beat the A2-pattern. Has anyone on here found a lighter 7.62 caliber flash hider lighter than that, or one almost as light but more effective?
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Posted: 5/9/2021 7:06:40 AM EDT
[#27]
Quote HistoryOriginally Posted By asorel: After a long and not very productive search, I've concluded that for steel 5/8-24 threaded flash hiders, you really can't beat the A2-pattern. Has anyone on here found a lighter 7.62 caliber flash hider than that, or one almost as light but more effective? Why would steel be the answer for a light weight rifle? |
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USA
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Posted: 5/9/2021 2:59:28 PM EDT
[#28]
Quote HistoryOriginally Posted By eodinert: Why would steel be the answer for a light weight rifle? Because this is meant to be a lightweight rifle that is also functional, and not merely light for the sake of being light. Titanium flash hiders produce very visible sparks as hot gases pass through them; needless to say producing sparks is not conducive to the intended goal of hiding muzzle signature. |
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Posted: 5/9/2021 3:33:57 PM EDT
[#29]
Griffin has a real lightweight type flash hider right? Maybe like 1.5ish oz micro?
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USA
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Posted: 5/10/2021 2:12:41 PM EDT
[#30]
Quote HistoryOriginally Posted By ahrion: Griffin has a real lightweight type flash hider right? Maybe like 1.5ish oz micro? I don't suppose you have a link? The lightest flash hider I've seen from Griffin was in the 2.4 oz range IIRC. |
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TX, USA
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Posted: 5/12/2021 5:18:37 AM EDT
[#31]
Quote HistoryOriginally Posted By asorel: Because this is meant to be a lightweight rifle that is also functional, and not merely light for the sake of being light. Titanium flash hiders produce very visible sparks as hot gases pass through them; needless to say producing sparks is not conducive to the intended goal of hiding muzzle signature. Would some kind of coating prevent the sparking? |
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Posted: 5/12/2021 10:20:41 AM EDT
[Last Edit: ahrion]
[#32]
Quote HistoryOriginally Posted By jekbrown: Would some kind of coating prevent the sparking? I have many titanium muzzle devices. It stops at around the 150 - 250 round count on < 16" barrels. > 16" barrels other sparks are non existent. My DLC coated muzzle devices don't have this issue. |
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TX, USA
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Posted: 5/12/2021 10:30:22 AM EDT
[#33]
Great info, thanks for posting!
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USA
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Posted: 5/12/2021 1:29:45 PM EDT
[#34]
Quote HistoryOriginally Posted By ahrion: I have many titanium muzzle devices. It stops at around the 150 - 250 round count on < 16" barrels. > 16" barrels other sparks are non existent. My DLC coated muzzle devices don't have this issue. That's interesting, because I've got about 2,000 rounds through my 20" barrel with the Smoke Composites titanium flash hider on it, and I still see the sparking intermittently. The Smoke flash hider is mostly uncoated, however, perhaps a DLC finish would change matters. |
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Posted: 5/13/2021 2:09:02 AM EDT
[#35]
Quote HistoryOriginally Posted By asorel: Because this is meant to be a lightweight rifle that is also functional, and not merely light for the sake of being light. This is kind of the light for the sake of being light thread. |
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USA
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Posted: 5/13/2021 3:51:30 AM EDT
[#36]
Quote HistoryOriginally Posted By eodinert: This is kind of the light for the sake of being light thread. It's true that that makes up the bulk of active posters in the thread, but per the Database's own mission statement (to catalog all weights of all 5.56 AR components), that's not the only demographic that enjoys these data. There are posters in this thread, as well as users of the spreadsheet, whose objective is "minimize weight as much as possible while restricted to certain criteria." |
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AZ, USA
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Posted: 5/13/2021 4:39:16 AM EDT
[#37]
There is that under 6lb thread if you wanna go as light as possible, not as extensive as this thread, but this thread has been instrumental for use on my 4lbs 14.5oz rifle as well as my newest one that made some sacrifices for lightweight to prioritize a bit more durability and precision.
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Posted: 5/13/2021 9:56:26 AM EDT
[#38]
Quote HistoryOriginally Posted By asorel: It's true that that makes up the bulk of active posters in the thread, but per the Database's own mission statement (to catalog all weights of all 5.56 AR components), that's not the only demographic that enjoys these data. There are posters in this thread, as well as users of the spreadsheet, whose objective is "minimize weight as much as possible while restricted to certain criteria." Most of us are restricted monetarily, either by our bankers or by our wives. 
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TX, USA
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Posted: 5/19/2021 8:33:21 PM EDT
[#39]
Yep, whether it's light just to be light, or a comp guy that needs as light / fast as possible while also being reliable, or a person building a SHTF gun that is trying to avoid his/her build being a pig when it doesn't need to be...the PWD is there to serve them all!
 One of my favorite builds was my DMR, which is NOT a light gun by any means, but I pinched ounces where I could without impacting perf / durability. It was a good time selecting parts with that mindset. Not every build has to be a shot at going sub-3lbs. |
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NV, USA
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Posted: 5/26/2021 1:38:14 PM EDT
[#40]
What’s the lightest charging handle right now?
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Posted: 6/15/2021 2:00:47 PM EDT
[#41]
My latest lightweight build….
KP-15 Lower  Prototype aluminum carrier  Hesse plastic upper receiver (approx. 3 ounces) New Frontier plastic LPK (to protect the aluminum carrier) Faxon lightweight barrel w/integral flash suppressor - 19 oz. EVERYONE out of stock  V7 Magnesium rail - approx. 5.7 oz Buffer - gutted carbine buffer approx. 1 oz Sight - Swampfox Liberty 1 oz |
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VA, USA
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Posted: 6/15/2021 2:06:55 PM EDT
[#42]
Quote HistoryOriginally Posted By PursuitSS: My latest lightweight build…. KP-15 Lower https://i.imgur.com/XmS430E.jpg Prototype aluminum carrier https://i.imgur.com/qOwpZj5.jpg Hesse plastic upper receiver (approx. 3 ounces) New Frontier plastic LPK (to protect the aluminum carrier) Faxon lightweight barrel w/integral flash suppressor - 19 oz. EVERYONE out of stock V7 Magnesium rail - approx. 5.7 oz Buffer - gutted carbine buffer approx. 1 oz Sight - Swampfox Liberty 1 oz Not gonna lie, I salute your effort and all, but that just seems like something that would break by looking at it wrong. |
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Posted: 6/15/2021 2:19:19 PM EDT
[#43]
Quote HistoryOriginally Posted By snapcan: Not gonna lie, I salute your effort and all, but that just seems like something that would break by looking at it wrong. KP15 are pretty robust for what they are. However, while I'm a gramchaser, I also look at the funtional strength aspects. This is why I sold my Fostech magnesium upper/lower and sold 2 of my 3 BCM KMR handguards. While the MI Combat handguard is like 1oz heavier, I would take it just because I would feel okay dropping it. Also, it's compatible with the KMR barrel nut. |
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Posted: 6/15/2021 2:19:55 PM EDT
[#44]
Quote HistoryOriginally Posted By snapcan: Not gonna lie, I salute your effort and all, but that just seems like something that would break by looking at it wrong. NOT a SHTF rifle, my main concern is the Hesse upper. The lower is DAMN tough. |
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Posted: 6/15/2021 5:31:59 PM EDT
[#45]
Quote HistoryOriginally Posted By PursuitSS: NOT a SHTF rifle, my main concern is the Hesse upper. The lower is DAMN tough. Lol, never thought I'd see the day about you owning Hesse anything. That should be damn light - handled a JP aluminum carrier once, weighed nothing. |
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Posted: 6/15/2021 5:46:05 PM EDT
[#46]
Quote HistoryOriginally Posted By backbencher: Lol, never thought I'd see the day about you owning Hesse anything. That should be damn light - handled a JP aluminum carrier once, weighed nothing. This was purchased LONG ago, before anyone had heard of them. I also purchased a Hesse plastic lower (it FAILED long ago) |
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Posted: 6/17/2021 5:59:06 PM EDT
[Last Edit: larrys]
[#47]
Quote HistoryOriginally Posted By PursuitSS: My latest lightweight build…. KP-15 Lower https://i.imgur.com/XmS430E.jpg Prototype aluminum carrier https://i.imgur.com/qOwpZj5.jpg Hesse plastic upper receiver (approx. 3 ounces) New Frontier plastic LPK (to protect the aluminum carrier) Faxon lightweight barrel w/integral flash suppressor - 19 oz. EVERYONE out of stock V7 Magnesium rail - approx. 5.7 oz Buffer - gutted carbine buffer approx. 1 oz Sight - Swampfox Liberty 1 oz I like it. What’s your target final weight? |
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Posted: 6/17/2021 6:47:56 PM EDT
[#48]
Quote HistoryOriginally Posted By larrys: I like it. What’s your target final weight? I’m hoping for sub-4 lbs. |
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TX, USA
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Posted: 8/7/2021 8:43:50 AM EDT
[#49]
Just looking at pictures I notice either no dust cover or a polymer cover.
I don't think I really need a cover but wanted to know what thoughts are on this? Should I just get the V7 cover and light rod and be done with it? |
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Posted: 8/9/2021 9:25:25 PM EDT
[#50]
Quote HistoryOriginally Posted By SOCOM76: What’s the lightest charging handle right now? Looking at the PWD, it seems a few have passed up the 1 oz Sintercore Tripwire I'm using. I've still not found the Luth-AR retro 601 (~.7oz) for sale, which is probably OK since I may get out of the ULW game anyhow. My 14.5" barreled pistol is at 3 lbs .5oz (muzzle device off) and I don't feel like there's a lot more meat on the bone for this project, so my fickle mind has lost interest. At least until I see one tiny, marginally improved part, at which point I'll get all fired up and start from scratch again. 
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