308 AR10 Build Info/Picture Thread

[jh2785]

Gotta fresh one here.....

18" barrel from Craddock Precision in 6.5 CM (Criterion blank, rifle +1)
SMF Tactical TAC-10 upper
KAC URX4 15" handguard (paint to install, lol)
Superlativer Arms AGB
JP LMOS full BCG

Lower is a Larue complete (other than the ambi end plate and a silent capture spring).

Weighs 8 lbs 14 oz stripped. Look forward to running this suppressed in next few days.

 

[precisionrifleman]

Ruger SFAR 6.5cm
Arken Ep5

 

[Cascade Hemi]

-M5 registered SBR receivers, trued, shimmed, glued
-Rainier Arms Ultra Match 308 Win MLGS barrel 16" cut down to 12.5". .0715" gas port
-Low Mass carrier, 2.2oz buffer, red Sprinco Spring.
-Aero AGB
-Whatever the cheapest Geissele trigger is. It's mediocre.
-7.3lb base weight. Kinda porky.

This started life as a barrel I took out of another gun due to dwell problems with the MLGS. Cutting off 3.5" of barrel completely resolved the early unlocking. The gun runs with full mass and low mass BCGs. It has enough gas for -20f weather, with and without the silencer, FMOS and LMOS. The scope is a cheap placeholder until I decide what to do with the gun

 

[Ed Compton]

Quick, potentially dumb, question: is it normal to not be able to put the safety on after releasing the trigger on my ar? I.E the safety can be switched off while cocked but only put on with it cocked

 

[Makinchips208]

Quick, potentially dumb, question: is it normal to not be able to put the safety on after releasing the trigger on my ar? I.E the safety can be switched off while cocked but only put on with it cocked

Usually that’s normal.

If the weapon is not cocked, the lever can’t be pointed toward SAFE.

 

[Ed Compton]

Usually that’s normal.

If the weapon is not cocked, the lever can’t be pointed toward SAFE.

That’s good to hear, thanks

 

[Krob95]

Noveske N6 Recon
Proof Carbon 22” 6.5cm
Superlative Adjustable Gas Block
Magpul Gen 3 PRS Stock
Area419 Arca Rail
Geissele Trigger of some sort (will be swapping to a TriggerTech)
JP VMOS BCG w/ HP bolt
JP SCS
TBAC Magnus SR
TBAC Bipod
NF ATACR 4-20

16.8lbs as pictured

 

[Forgetful Coyote]

View attachment 8368955View attachment 8368956View attachment 8368957View attachment 8368958View attachment 8368959View attachment 8368960View attachment 8368961View attachment 8368962Just finished hammering together another really nice 6.5CM: Seekins SP10 Builder's Kit, done up in Accuracy Int'l Dark Earth Cerakote; Rock Creek 5R SS barrel by Craddock Precision; SLR adjustable gas block; JP FMOS bolt carrier group; JP H2 Silent Captured Spring Kit. I thought I'd see if it wanted to be a shooter, so I threw a scope on it. With no gas system tuning at all, groups were immediately sub-MOA with the first box of factory ammo I picked up.

How tight is the barrel extension inside the upper on those Seekins? Ie they have to be thermo-fitted?
Does the 22" heavy barrel behave okay with a can on the SP10?

 

[MSTN]

Barrel extension outside diameter is the other potential variable in the upper-to-barrel fit equation.

I only build SP10's with Craddock or Proof barrels. Both are a snug fit in the Seekins upper, and thermal fitting is usually required.

I have a good deal of exposure to the 22" SS barrel with suppressor in the Seekins SP10 kit. One of my top shooting buddies had me build one just like this for him. He's using a HUXWRX Flow 762 Ti. He gets sub-MOA 10-shot groups with Federal GMM and their 140 Match Kings.

He's got about 300 rounds through it and has never cleaned it. No telling how well it might shoot if he bothered to punch it out.

 

[wilson3899]

SOLGW 14.5" 6.5CM

 

[MSTN]

Neat stock attachment. What is that?

 

[tekmann2377]

PSA receivers
Criterion 22" 6.5 CM
Magpul PRS Lite
CMC 2.5# trigger
Vortex PST Gen II 5-25x50
Harris Bipod

View attachment 8485053

While some may decry PSA, their large frame receivers are very serviceable as long as you keep an extra bolt catch or two on hand. This is coming from a guy who has used a bunch of receiver sets from old school DPMS to LMT to SR-25. Very functional basic build.

 

[Ed Compton]

It’s a long story, but I ended up with 2 bolts for my Ar-10: the nice, smooth nitride one from my RCA BCG, and a phosphate Fulton Armory one that got sent free with my barrel. The Fulton Armory bolt is headspaced for the barrel; the RCA is not, but the bolt closes over a round and there are no problem signs on fired cases (to my very limited knowledge). Could I expect better accuracy from the headspaced bolt? Is it worth switching out and shooting a ton of groups to see?

 

[wilson3899]

Neat stock attachment. What is that?

It's a Subrev xl bag rider and low pro lever

 

[Bevo]

It's a Subrev xl bag rider and low pro lever

I have them on all of my B5 Bravos. Great addition and great guy to deal with.

 

[Michael Trainowski]

View attachment 8525814


Noveske N6 Recon
Proof Carbon 22” 6.5cm
Superlative Adjustable Gas Block
Magpul Gen 3 PRS Stock
Area419 Arca Rail
Geissele Trigger of some sort (will be swapping to a TriggerTech)
JP VMOS BCG w/ HP bolt
JP SCS
TBAC Magnus SR
TBAC Bipod
NF ATACR 4-20

16.8lbs as pictured

Hey random question, what shooting tripod do you have in this picture and how tall does it get? I *really* want one, but everyone one I’ve seen maxes out at 6’ tall. I’m 6’10” so I need one that’s 7’.

 

[mrtoyz]

Hey random question, what shooting tripod do you have in this picture and how tall does it get? I *really* want one, but everyone one I’ve seen maxes out at 6’ tall. I’m 6’10” so I need one that’s 7’.

Not my pic but that’s Really Right Stuff tripod with an Anvil head. You’d want to look at there 33 or 34 “L” tripods. You won’t be disappointed.

 

[Krob95]

Hey random question, what shooting tripod do you have in this picture and how tall does it get? I *really* want one, but everyone one I’ve seen maxes out at 6’ tall. I’m 6’10” so I need one that’s 7’.

This is the RRS 34L with the Anvil 30. Max height is 71.1” according to their website.

 

[Michael Trainowski]

This is the RRS 34L with the Anvil 30. Max height is 71.1” according to their website.

Damn it, so 6’ again. As I’ve been researching them, I’ve been getting the feeling this is one I’m going to have to figure out and build myself.

 

[powdahound76]

Damn it, so 6’ again. As I’ve been researching them, I’ve been getting the feeling this is one I’m going to have to figure out and build myself.

For shooting off a tripod, I dont stand fully upright behind my rifle.
I dont think anyone does much?

There is a really great tutorial on tripod shooting somewhere here on the Hide, stickied. See link below.

10” shorter than your height should be plenty easy to plant behind and lean into a bit.

Advanced Marksmanship - Tips & Tricks, from Tripods to Stage Examples for - UKD Team Field Match or Hunting

See the 2021 match schedule here: https://www.avenaltactical.com/ including the next UKD Team Match, 2 PRS Pro Bolt series, PRS SW Regional Qualifier, and monthly Hunter and PRS regional series, matches. Because our match was sold out 10 months in advance, we feel we should offer a spin up...

www.snipershide.com

 

[mrtoyz]

Damn it, so 6’ again. As I’ve been researching them, I’ve been getting the feeling this is one I’m going to have to figure out and build myself.

As Powdahound said above, you won’t be standing completely upright.
Even at 6’10” I’d suspect the 71.1.” plus rifle/scope on top will be satisfactory. I’ve been seeing a few of these RRS tripods pop up used lately.

 

[Michael Trainowski]

As Powdahound said above, you won’t be standing completely upright.
Even at 6’10” I’d suspect the 71.1.” plus rifle/scope on top will be satisfactory. I’ve been seeing a few of these RRS tripods pop up used lately.

Yeah I haven’t tried one yet. I plan on taking my long distance build out to my buddy’s land and start stretching its legs, and I would much rather stand than crawl around in West Texas’ dirt, rocks, and rattle snakes lol.

 

[stanley_white]

This video by Caylen Wojcik of Modern Day Sniper is of value:



-Stan

 

[2old2run]

My first 3 attempts at AR-10 building. All 3 are Bear Creek Arsenal 308 uppers. Front 2 are Aero lowers with 20" barrels, back one is bcg with an 18" length barrel. So far am very happy with the results of all 3 with factory and handloaded rounds.

 

[Necessary 3vil]

Anyone running an AR10 SBR for subs???
Thinking of a 10.5” suppressed for hunting.

 

[Bobb3950]

While I have a 14.5" ar10 I don't run subs in it. I have 2 300blk, a 16" and 8.5" sbr to run subs in.

 

[Necessary 3vil]

While I have a 14.5" ar10 I don't run subs in it. I have 2 300blk, a 16" and 8.5" sbr to run subs in.

Same, I’ve got a few 300BLK’s and load for them but I’m interested in a new fun trend that’s starting.

 

[Michael Trainowski]

Anyone running an AR10 SBR for subs???
Thinking of a 10.5” suppressed for hunting.

I built my 8.6 Blackout in 12”, so it’s a two stamp gun with the can. It’s quickly become my favorite rifle. So much fun and stupid quiet. It’s a bit difficult to explain the joys of shooting a .300 grain projectile without ears. The first time I did it all I could do was laugh.

 

[usmcsgtglock]

Anyone running an AR10 SBR for subs???
Thinking of a 10.5” suppressed for hunting.

I run a 14.5 inch black holes weaponry barrel in 308 sir hunting rig. 1:9 twist and run subs through it jus fine. Really good setup

 

[shooterrdy]

Ballistic Advantage Upper/Lower & BCG
Elftman Trigger
JP silent capture spring
MOE stock
CMMG 16” barrel (bought used for a starter)
Cross Machine and tool hand guard Arca Swiss M lock
Ambi charging handle
Sure Fire War Comp for RC2

Image to large

 

[Billiam1211]

Ballistic Advantage Upper/Lower & BCG
Elftman Trigger
JP silent capture spring
MOE stock
CMMG 16” barrel (bought used for a starter)
Cross Machine and tool hand guard Arca Swiss M lock
Ambi charging handle
Sure Fire War Comp for RC2

Image to large

https://pixlr.com/express/

You can use that link to easily resize your images. Just do like 500x500 before you export it

 

[BAMAboy18]

Anyone running an AR10 SBR for subs???
Thinking of a 10.5” suppressed for hunting.

All I need to do is mount a surefire warcomp to do so, but it's kinda down the list of projects. And mine is a 13.5".

 

[ohiogunnut]

 

[GhostFace]

What caliber?
What barrel?
What's the barrel length?

I know it shoot awesome but how does it shoot?

ETA love the E1 rail, I wished he'd make them again but I'd want it in 15 inches though....

 

[Top O' Texas]

What caliber?
What barrel?
What's the barrel length?

I know it shoot awesome but how does it shoot?

ETA love the E1 rail, I wished he'd make them again but I'd want it in 15 inches though....

if referencing the previous post, it appears to be an armalite (well an armalite cut receiver), 7.62x51 according to the info on the optic w/24" barrel (possibly 22"). 20" at the least?

 

[ohiogunnut]

if referencing the previous post, it appears to be an armalite (well an armalite cut receiver), 7.62x51 according to the info on the optic w/24" barrel (possibly 22"). 20" at the least?

You sir are correct! 24" armalite T barrel from back in the day. Not sure who original supplier was but still solid shooter with 155gr scenars.

 

[GhostFace]

if referencing the previous post, it appears to be an armalite (well an armalite cut receiver), 7.62x51 according to the info on the optic w/24" barrel (possibly 22"). 20" at the least?

Yeah, I know a little bit about the Armalites (lol). The tan one was a T that I bought back in ‘06. Ohiogunnut’s pic somehow , the barrel looked longer than 24. That’s why I thought maybe it might have a custom build hence my questions.

 

[Top O' Texas]

Yeah, I know a little bit about the Armalites (lol). The tan one was a T that I bought back in ‘06. Ohiogunnut’s pic somehow , the barrel looked longer than 24. That’s why I thought maybe it might have a custom build hence my questions.

Knowing their gas system and making a guesstimate from gas block to end of barrel (minus suppressor) was making me think 24". Handguard length also helped counting pic rail segments.

 

[KCode]

Yeah, I know a little bit about the Armalites (lol). The tan one was a T that I bought back in ‘06. Ohiogunnut’s pic somehow , the barrel looked longer than 24. That’s why I thought maybe it might have a custom build hence my questions.

I need to know what is going on here! What is with the brown furniture on the black one? It looks amazing

 

[GhostFace]

It was OD green but I used a combo of Rite dye to get it brown. I screwed up as I was going for the AK purple but I liked the brown so I left it alone....

 

[stevieb92]

Placeholder for the completed build and range report, but here is a teaser pic. The barrel will be coated black this week. Chocolate Chip Cookie Camo Cerakote. Build list:

Mega Arms MML billet receiver set
X-Caliber 20 inch bull barrel .936 gb (6.5 Creedmoor)
Trigger Tech AR-10 Duty 3.5lb single stage trigger
Vortex Precision Cantilever Scope Mount
Vortex Strike Eagle 5-25x56 mrad
SLR Sentry 9 adjustable gas block
APA Little Bastard nitride muzzle brake
Brownells 308 nitride bcg
Accu-Tac Picatinny bipod

 

[Michael Trainowski]

Placeholder for the completed build and range report, but here is a teaser pic. The barrel will be coated black this week. Chocolate Chip Cookie Camo Cerakote. Build list:

Mega Arms MML billet receiver set
X-Caliber 20 inch bull barrel .936 gb (6.5 Creedmoor)
Trigger Tech AR-10 Duty 3.5lb single stage trigger
Vortex Precision Cantilever Scope Mount
Vortex Strike Eagle 5-25x56 mrad
SLR Sentry 9 adjustable gas block
APA Little Bastard nitride muzzle brake
Brownells 308 nitride bcg
Accu-Tac Picatinny bipod


View attachment 8570296

That’s a nice set up. I put that same trigger in my 20” 6.5CM build and love it so much I put it in half my builds. How is that Brownell’s BCG? I’ve seen them, but almost always go either Aero or Radian if they’re on sale.

 

[Sigmanx]

Aero M5 stripped receivers
Midwest Industries 15”
Faxon 20” 308 Fluted Heavy Match Barrel and matching BCG
Geissele SSA-E
VLTOR RE-10/A5SR Buffer system w/ Green Spring and AR15 H2 Buffer
Currently just the SWFA 12x and planning to swap over to the 10x w/ zero stop turrets until I can do a Leupold.
I swap my Sandman K across several rifles, but eventually plan to get a dedicated suppressor for this guy. Looking at either the Nomad L or the GA OTB suppressor system.

 

[stevieb92]

That’s a nice set up. I put that same trigger in my 20” 6.5CM build and love it so much I put it in half my builds. How is that Brownell’s BCG? I’ve seen them, but almost always go either Aero or Radian if they’re on sale.

I like the Brownells bcg. I have several other Brownells bcgs in both AR-15 flavor and AR-10 flavor. Runs just fine and the price is superb. I have a few JP bcgs, and for the money, these things are a great buy. They look like Toolcraft, but I'm not positive. Maybe someone else knows?

 

[Top O' Texas]

I like the Brownells bcg. I have several other Brownells bcgs in both AR-15 flavor and AR-10 flavor. Runs just fine and the price is superb. I have a few JP bcgs, and for the money, these things are a great buy. They look like Toolcraft, but I'm not positive. Maybe someone else knows?

i have no experience with toolcraft, but do have bcg's from brownells. i have their lite weight bcg in 308 and 556 (bolts to match which ever cartridge i'm using).

 

[Top O' Texas]

Placeholder for the completed build and range report, but here is a teaser pic. The barrel will be coated black this week. Chocolate Chip Cookie Camo Cerakote. Build list:

Mega Arms MML billet receiver set
X-Caliber 20 inch bull barrel .936 gb (6.5 Creedmoor)
Trigger Tech AR-10 Duty 3.5lb single stage trigger
Vortex Precision Cantilever Scope Mount
Vortex Strike Eagle 5-25x56 mrad
SLR Sentry 9 adjustable gas block
APA Little Bastard nitride muzzle brake
Brownells 308 nitride bcg
Accu-Tac Picatinny bipod


View attachment 8570296

u forgot 1 item...................ubr

 

[stevieb92]

i have no experience with toolcraft, but do have bcg's from brownells. i have their lite weight bcg in 308 and 556 (bolts to match which ever cartridge i'm using).

Toolcraft is or used to be the OEM for many companies that sell bcgs. Not sure if they still are, however.

 

[stevieb92]

u forgot 1 item...................ubr

Whoops. Good catch! In my defense, the stock is obviously a Magpul UBR gen 2.

 

[rpoL98]

I like the Brownells bcg. I have several other Brownells bcgs in both AR-15 flavor and AR-10 flavor. Runs just fine and the price is superb. I have a few JP bcgs, and for the money, these things are a great buy. They look like Toolcraft, but I'm not positive. Maybe someone else knows?

i've found that the Brownells nitride 308 BCG has the HP firing pin. worth mentioning, FWIW.

 

[Top O' Texas]

i've found that the Brownells nitride 308 BCG has the HP firing pin. worth mentioning, FWIW.

i haven't seen their hp version. how old are they? it's been 4 years going on 5 since i bought their 308 bcg.