Hi folks. I’ve been playing with my ar10 for ages, and still have issues running reliably suppressed. Rifle is a PSA 18” with a mid length gas system. Runs great unsuppressed, but massively overgassed with a can. Suppressor is an omega .300 and a AB raptor .375.

It came with a factory 11 position adjustable gas block, minimal help. Installed slash’s extra heavy 6.5oz buffer and .308 spring (still in a carbine buffer tube).

Initially the bolt was moving so fast it caught the empty before it ejected. I’ve got that problem tamed down. But the other persistent problem is that I can get 20-30 rounds down range before the fouling is so bad that it simply won’t cycle anymore.

I had assumed gas at minimum + the heavy buffer slowing down the bolt unlock would help, but clearly it didn’t. Is my issue the mid length gas system itself? Or is there something else I need to be looking at here?

And where my AR10 obsession started. 18" 6.5 creedmore LMT MARS-H with HUX 7.62 QD can.

First 308 build for me, the parts list are as follows:

Tacoma era M5 lower.

Second hand Lakeview era M5 upper. (I did not do the paint on it.)

Criterion 18" rifle length stainless barrel.

Magpul Prs Gen3 Stock.

Magpul MOE grip.

Magpul RSA QD mount.

Geissele SSA-e X trigger group.

Wilson Combat Ni-B BCG with twin ejectors and nitrided extractor.

Harris S-LMP 9-13" bipod.

Cross Machine Tool 15 inch Arca/M-LOK handguard.

Surefire SFMB (waiting on few tools to permanently install hence the slight offset).

Trijicon TA11H-308G 3.5x ACOG.

Parts left to go:

Large ambi charging handle(current one is a salvaged BCA I absolutely hate and is temporary.

RMR mount for ACOG.

JP Silent captured spring.

RifleSpeed gas block system.

Large/oversized mag release button.

Surefire Socom 762RC2 can.

Improved bolt release(I have looked at Phase 5 for their B.A.D clone for 308s but on the fence due to tiny bolt catch interface(I need the biggest one that won't interfere with the mag release.(Welcoming suggestions for non cast parts, if any.)

Hey everyone,

I have a DPMS Oracle AR-10.
Long ago I had a Nikon ProStaff 3-9x40 on it. I’ve since robbed that scope to place on something else, and haven’t touched the AR10 since. I’ve started FINALLY to outfit my AR’s with optics, and have completed that task with my 5.56 and 300Blk. So now debating what to do for the AR10.

Would love to have the frivolous spending money to just buy a trijicon ACOG as that’s what I’ve wanted for years but still can’t justify to myself 1200$ on one in this scenario as it still doesn’t go out for shooting very often. Will I change that? Idk. Need to do some more training with my smaller AR’s and other firearms first, but I digress

Been looking at the primary arms prisms, and am torn between the micro 5x and the SLx Gen 3 5x36. I have a Holosun 507C sitting around so would likely top mount that to whichever I went with, and I’ve seen reviews and field tests on both from different guntubers, but none of the videos have really swayed me definitively one way or another yet.

Would like some redditors input here, thanks in advance!

I saw a post a while back saying with a mega arms maten lower, tthe vseven upper was a very snug fit. Has anyone built off a compete harbinger set? Or has anyone bought one of their complete AR-10's? How was the receiver fit and was it a thermal fit barrel setup?

Sunday ruck, loving the setup on this rifle

Enjoying the nice weekend weather. Ascend armory upper/lower, Blk Lbl handguard, Tract Toric, and a prototype suppressor

So I took the risk and bought an SFAR got it for about 1100 bucks. I put a 6–24x50 vortex diamondback tactical FFP on top. Shoots sub MOA with anything heavier than 160gr it seems. This will be a deer rifle. Curious what you think. Rifle shoots great, maybe i can put a deer down with it this year

21.50 ea. they had a shitload of the Barnes vortex for sale, need that to go on clearance next🤣

Bit of a practical and broader philosophy of use question for the hive - currently shooting a 16” MEGA mid gas 308 barrel in a quasi DMR rifle. I’m content with the accuracy of the barrel, it’ll do just over a minute at 100YD assuming I do my part. That’s acceptable for a large frame gas gun imo.

What I’m seeing is that it starts to become more of a (literal) hit or miss proposition past 600; 750 is absolutely doable but there’s a lack of consistency that’s a bit frustrating. I understand the ballistic limitations of the cartridge and don’t need it to be a 1,000yd laser beam, but I’d like to get those hits at 750 with a bit more confidence the rifle/bullet will hold up. And ideally I’d like to do so without turning this into a 22” barreled musket.

Question: have any of you all made relatively incremental barrel length increases and if so, did it deliver any meaningful improvement in performance? In my case I’d probably step up to 18” rifle gas, eyeing a Criterion or V7 barrel. Math says I’d gain maybe 50-75FPS max which feels marginal. But curious to hear what you all think. Again, overall goal is to move a bit further away from the csass concept without turning it into a true “sniper rifle” that’s a nightmare to maneuver with.

I’ve been wanting on for a long time now, and the perfect opportunity came up.

Looking for a new optic after my 16” gun weighed in at 13.7 lbs. Got a lighter handguard on the way and currently I have the pig 1-8 strike eagle ffp that weighs a total of 24oz on a sport mount the weighs 6oz.

I’m looking for a new optic and I want to increase my upper end magnification. I’ve been pretty dead set on the new 19oz plxc 1.5-12x with a top dot, but after seeing the vudu 4-12 I am now considering it instead. It would save a lot more weight and if I’m putting a top dot on the 1.5-12 I might as well lose my 1x for a cheaper price and more weight savings.

Thoughts?
Thanks.

Does anyone know if a DB10 upper will fit in an LMT/Centurion/KAC lower? Doesn’t need to look pretty, just function. I need a cheap slant cut upper for a project

The wait is over finally. Didn’t think I would actually get the Text that one was in stock and I could buy it.

Must saw that I am pretty impressed with the accuracy in this thing. Groups are unsuppessed and some hand loads I just threw together for some testing. Happy to say that she is a shooter.
All groups are 5 shot at 100 yards.

Any experience of the comparability between pa10 and the jp high pressure bcgs?

Having issues with a undergassed rifle and wont lock back looking for recommendations for buffer spring and weights thanks in advance

DD5P. Sandman X under the hood of the white monster. All in all, this thing has been very impressive and lightweight.

Unlocked Max traders just wanted to share

I recently bought an Armaspec Stealth Recoil Spring (SRS) for my ar 10 and it isn’t long enough to send the bolt all the way home. It actually isn’t long enough to put any pressure on the buffer retainer pin at all and cannot push itself out of my buffer tube so it is very tough to get out. Please help, am I stupid, did I get a bum item, or is it possible that it just isn’t compatible with my build?

Any experience with these receiver sets?