308 AR10 Build Info/Picture Thread

[Quiet6.8]

My lightweight hunting 2aArmament 308 build

2aArmament Xanthos receiver set
20” Rifle Gas ProofResearch 308 Barrel
SmokeComposites CF HG
SmokeComposites Pistol Grip
SmokeComposites Fixed Rifle Length Stock
2aArmament Ti GB
2aArmament Ti RBCG
2aArmament Ti Pins
V7 Small Bits
NF 2.5-10 NXS in a NF Mount
JPSCS
SiCo Harvester30
CMC 2.5lb Single Stage

 

[loveha]

Nothing fancy. Just an older Sig 716 patrol in 7.62x51 that I customized a a few years ago.
One of the early elite Cerakote colors, magpul furniture and TT trigger with atlas bipod. Hanging off the barrel is a Sandman S.

 

[Twins82]

13 inch 308 pictured targat at 500 yards 35% hit rate

 

[Kaveman44]

Just received my new rock river arms LAR-BT3 in 308, it has a 20 inch barrel, barrel is fluted. I am also putting EC Tuner Brake on it , i’m waiting for my Sphur mount to show up and I am putting a Nightforce NX8 4 x 32, this is going to be my hunting rifle and I might try to shoot some competitions with it as well, I also put up one of the shirts I bought at my gun show today they have some great ones there

 

[BlueRoan]

Just bought this gently used Aero AR-10.
Let me tell ya what Melba Toast is packin’, alright.
Aero Precision M5
Aero 18” barrel (1:10)
Aero VG6 Epsilon 762 brake
Aero Atlas R-One 15” handguard
Geissele trigger
BAD safety selector
Odin mag release
Aero nickel boron BCG
Raptor ambi charging handle
Magpul PRS stock (2nd gen)
Magpul grip
Magpul anti-roll pins
Vortex Diamondback 4-12x40 scope

The scope will get swapped out with a Vortex Viper Gen 1 PST FFP 6-24x50 that should be here on Tuesday.

 

[Kaveman44]

Added my NX8 4x32 and also put a EC Brake tuner, Caine wait to shoot this bad boy

 

[BlueRoan]

Update with the new glass. Vortex Viper PST 1st gen 6-24x50 FFP. Love this scope. I had the same model on an M1A that I used to have.

 

[Clayman]

Zev Tech builders set
Proof Research 6.5 Creedmoor 22" stainless
Deadair muzzle brake
SLR sentry 8 adjustable gas block
JP FMOS HP bcg
Radian Black/NP3 SD charging handle
A2 buffer tube
KynSHOT AR10 hydraulic marksman buffer
JP tuned and polished extra power buffer spring
Magpul PRS gen 3
TriggerTech Diamond
Kns trigger pins
Radian 45⁰ selector
Ergo TDX 0 angle
Trijicon Tenmile 4.5-30x56 FFP precision tree
ADM Delta Cantilever 34mm 20 moa mount

 

[RC556]

Zev Tech builders set
Proof Research 6.5 Creedmoor 22" stainless
Deadair muzzle brake
SLR sentry 8 adjustable gas block
JP FMOS HP bcg
Radian Black/NP3 SD charging handle
A2 buffer tube
KynSHOT AR10 hydraulic marksman buffer
JP tuned and polished extra power buffer spring
Magpul PRS gen 3
TriggerTech Diamond
Kns trigger pins
Radian 45⁰ selector
Ergo TDX 0 angle
Trijicon Tenmile 4.5-30x56 FFP precision tree
ADM Delta Cantilever 34mm 20 moa mount

Laser beam

 

[USK308]

Hey Everyone,
First AR platform .308 build in-progress.

Here is the build-list:
Aero Precision M5 (.308) Stripped Lower Receiver, Special Edition: Freedom - Anodized Black
Aero Precision M5 .308 Assembled Upper
Aero Precision 18 Inch .308 CMV Barrel 1:10 Twist Rifle Length Gas 5/8×24 DPMS LR308 Pattern QPQ Corrosion Resistant Nitride
Aero Precision .308 / 7.62 Bolt Carrier Group, Complete - Black Nitride
Aero Precision Ambidextrous Charging Handle
Superlative Arms Adjustable .750 LOW PROFILE GAS BLOCK - BLACK
Aero Precision Rifle length Gas Tube
Aero Precision M5 ATLAS R-ONE M-LOK Handguard, 15"
Aero Precision M5 .308 Lower Parts Kit, Minus FCG/Pistol Grip
Aero Precision Castle Nut / End Plate (purchased)
Magpul® Enhanced Receiver Extension – SR25/M110
BAD-ASS-PRO Reversible 90/60 Ambidextrous Safety Selector
Geissele 2 Stage (G2S) Trigger
SilencerCo ASR 7.62 Muzzle Brake Suppressor Mount 7.62mm AR-10, LR-308 5/8"-24 Thread Steel Matte (AC591)
Hogue AR-15/M-16 Over-Molded (SKU 15340)
JPSCS2-10 Silent Capture Spring
Magpul PMAG GEN M3 AR-10 7.62NATO 20 Round Magazines
Hogue OverMolded Pistol Grip AR-15 with Finger Grooves Rubber
Cerakote camo job

I've completed the lower assembly; will work on the upper/barrel/handguard soon (work has been crazy busy)!! Pic of the lower attached. Had a local shop here in metro Denver do my Cerakote job. The Cerakote colors I chose were:
H-234 Sniper Grey
H-264 Mil-Spec Green
H-265 Flat Dark Earth

Cheers!

 

[Stickman]

 

[Clayman]

First photo edit attempt. Some rough lines/edges but I think it's alright for doing everything on a phone.

 

[CaptArab]

First photo edit attempt. Some rough lines/edges but I think it's alright for doing everything on a phone.

What do you think about the Nomad L on a large frame?

Mine is a bit high back pressure for my preference on my intermediate 16" 308 with H3. Gunks up the chamber really quick. I've gone back to my substantially louder rugged razor.

I might have better luck with a rifle length.

 

[Clayman]

What do you think about the Nomad L on a large frame?

Mine is a bit high back pressure for my preference on my intermediate 16" 308 with H3. Gunks up the chamber really quick. I've gone back to my substantially louder rugged razor.

I might have better luck with a rifle length.

Are you running an adjustable gas block?

I have a rifle length +2 and SLR sentry 8. Works great with my Nomad and Nomad L.

 

[CaptArab]

Are you running an adjustable gas block?

I have a rifle length +2 and SLR sentry 8. Works great with my Nomad and Nomad L.

Yea I'm running the superlative.
It seems to go from not enough gas to mildly overgassed (1 o'clock) with one click.

Just to clarify- I can get it running okay for 80-100 rounds or so, bit after that it gets so dirty from excessive blowback it's hard to chamber a round.

I think the intermediate gas is the issue, along with lack of fine tuning control on the SA agb.

My razor is loud, but low back pressure so it's much less headache.

Thanks for the feedback.

 

[Clayman]

Nice rifle. What's the forend length?

Thanks

16 ⅝"

 

[USK308]

After way too long a wait (had to wait for a dimpling jig and a carbide bit)...I have finally assembled the upper/barrel/gas system/handguard/muzzle device. The build is 99% complete. All that is left is the bipod, Objective & Eyepiece flip-caps from Vortex and it's done!

Overall, I'd say this was a complete success on my part! Learned a number of things along the way, for example:
1) If using an adjustable gas block, make sure you open it wide-open before you start working the installation of the gas block. Make it easier to do the 'blow test' (lol).
2) Make sure have your work area well lit. Sometimes, the little set screws can be a real PITA to find unless well lit.
3) Pay attention to direction of things as you install. If you're installing a "Bad Ass Pro Ambidextrous Safety," for example, it is an easy mistake to install upside down (especially if you're working fast and not in a well lit environment).
4) Make sure you have all your tools needed laid out and ready. Just makes the job easier...
5) Plenty of other observations

Now I am ready to get it out to the range and start fine-tuning! More pics once I get the bipod and flip-caps.

Edit: bipod added along with scope flip-caps. Total weight of the rifle: 12lbs 2.0oz

 

[jwramp]

Did up a custom 6.5 barrel for the long mlok upper for this MWS. Also tried my hand at spraying Cerakote for the first time. Took some close up photos of all the engravings beforehand and re-lasered them on afterwards, thought that really looked nice. Been waiting all summer for the Magpul PRS Lites to start shipping…

 

[db2000]

First AR10 build. Came out nice.
Seekins .308 w/ Geissele SSA-E
Tubbs/Kaw Valley 5oz, Fail Zero/JP bolt, 18” Proof 1:10, Omega
Good group during barrel break in.
185 Juggs V43.5. A little hot in this gun but only 120 fps slower than my bolt gun 24”barrel and cycles great suppressed with the Superlative AGB bleed off, Tubbs flat spring and 5oz Kaw Valley buffer.
Varget 43 0.7” group 2520 fps

 

[Kaveman44]

Seekins SP10 in 6.5 creedmoor, I put the magpul PRS stock on and added a EC Tuner Brake . I will do some load testing this weekend

 

[bobke]

Finished these up recently.

 

[hk401]

Hk MR 762

 

[Jefe's Dope]

Just slapped this together. Blatant rip-off of @big_beau13 's gun here. https://www.snipershide.com/shooting/threads/308-ar10-build-info-picture-thread.6252642/post-9438572

But oh well, his build inspired me.

SLR Rifleworks B-30 builders kit w/ 16" Ion Lite handguard. Lantac heavy BCG, JP HP bolt, JP SCS, Proof 24" CF 6.5 Creed, CMC 2.5lb SS straight shoe, PRI M84 gas buster charging handle.

View attachment 7719218

I like yours better. How does it shoot with factory?

 

[big_beau13]

@reubenski Looks awesome man! Good work. That JP Silent buffer tube is the shit, right?

 

[big_beau13]

Which razor is that

Sorry man, I missed this one. It is a Razor HD Gen2, it has a wrap on it...

 

[LOS]

I'm going in...

 

[Jmccracken1214]

Gen 3 pa65
22” BA barrel
Aero m5 handguard
Cmc trigger
Bushnell elite
Dead air keymo brake

I’m really hoping the new barrel speeds up a little, 5 rounds of 140 eld, starline brass, cci450 and 41 gr of h4350. Netted 2615 fps.
Flyer was cold bore shot. Measures center to center 0.66 with the flyer and .34” without.

 

[Haydenegg]

Aero precision 308 with nx8 thunder chicken suppressor and a pvs30 clip on

 

[LonewolfMcQuade]

AR10T

 

[MSTN]

The goal here was to build a totally uncompromising ultralight long range gas gun. This is the result: V Seven 7075 Harbinger Billet Receiver Set; V Seven 2099 Ultralight Mlok 15" Rail; Proof Research Carbon Fiber Wrapped 20" 6.5 CM Barrel with +2 Gas System; SLR 0.875" Adjustable Gas Block; OSS 7.62 Flash suppressor (other designs may easily be substituted); Geissele 7.62 Super Charging Handle; JP Full Mass Operating System ("FMOS") Bolt Carrier Group; V Seven Lightweight Forward Assist and Ejection Port Door; V Seven Titanium Push Pins, Fire Control Pins. Grip Screw, & Buffer Stop; V Seven S7 Tool Steel Bolt Catch; TriggerTech Adaptable Trigger, 2.5-5.0 LB, set on the low end; Vltor A5 Lower Receiver Extension; Recoil System Consisting of JP.308 Polished Carbine Recoil Spring and V Seven H3 Buffer; Magpul SL-S Buttstock; BCM Gunfighter Mod 1 Pistol Grip; Lancer L7AWM Clear 20-RD Magazine. Empty weight 8 LB 9 OZ.

 

[LOS]

 

[LOS]

Slapped on the Beast just for grins...

 

[t9regg]

A few LMT .308 piston barrels and bcgs hit gunbroker recently, and even though I just finished my MK12, I caved and picked one up. They’re overruns from LMTs Estonian Defense contract. It’s heavy, weighing in at 14 lbs fully loaded and as pictured. I’ll follow up with a range report when able.

 

[LANCER]

A few LMT .308 piston barrels and bcgs hit gunbroker recently, and even though I just finished my MK12, I caved and picked one up. They’re overruns from LMTs Estonian Defense contract. It’s heavy, weighing in at 14 lbs fully loaded and as pictured. I’ll follow up with a range report when able.View attachment 7727743

Now THAT. Is interesting. Thanks for sharing.

 

[unclemoak]

Just got done stuffing a 22" 6.5 Creedmore Proof barrel in my MWS.

 

[unclemoak]

That would look pretty badass with an 18" barrel and a Rex MG7 30 cal.

Let us know how it shoots.

Seems to shoot pretty well. This was the first box of ammo down the tube.

 

[LANCER]

That would look pretty badass with an 18" barrel and a Rex MG7 30 cal.

Let us know how it shoots.

Who made the barrel extension for the MWS? Can you share? Thanks

 

[unclemoak]

Who made the barrel extension for the MWS? Can you share? Thanks

Factory Proof Extension. I modified the extension/barrel/contour to work with the MWS upper.

 

[unclemoak]

That would look pretty badass with an 18" barrel and a Rex MG7 30 cal.

Let us know how it shoots.

I think I'm going to put a Lux 6.5 on it. It's a couple oz lighter than the Rex and I love my current Vox, so I'll likely stick with Energetic Armament.

 

[WCO_YOTA]

My short barreled 308.

 

[WCO_YOTA]

View attachment 7734134My short barreled 308.

SiCo Flash hider
BA Hansen 12.5” Barrel
Surefire duel fuel with trex arms extension
Cmmg 9” handguard
Superlative arms adjustable gas block
JP low mass bcg and high pressure bolt
Geissele g2s-e trigger
Geissele super charging handle
Tubbs flatwire spring
Custom weighted buffer from CTS trimmer
Sba4
Executive ordinance grip
Dragon scale rails panels
Trijicon credo 1-8 in ADM mount
Ariska 45 offset and T2
Custom black multicam by myself.

 

[PBWalsh]

How well does that 12.5 run? Full setup reliability?

@Morfalaswen01

 

[WCO_YOTA]

How well does that 12.5 run? Full setup reliability?

@Morfalaswen01

It runs great. Only issue I’ve ever had was feeding issues with a normal buffer. I had to get a shorty that is 2.5” long and adjusted the gas block and it runs perfect

 

[WCO_YOTA]

How well does that 12.5 run? Full setup reliability?

@Morfalaswen01

Before all the crazy add ons

 

[WCO_YOTA]

What ammo or loads do you shoot through it?

I shoot federal 180 grain. And then some Sierra match 168

 

[WCO_YOTA]

I shoot federal 180 grain. And then some Sierra match 168

I’m sorry federal 150 not 180

 

[GhostFace]

I bought this Armalite A4 around election time because I though Hillary was going to win. I chopped the barrel down to 16 inches with the RLGS it's a very soft shooter. It also has a adjustable gas block, Tubbs spring. Also a Franklin Armory binary trigger. It runs like a top but it's a handful on binary...

I killed a 200 lb hog with it last week in Tennessee. I have a YHM Resonator-K in jail for her...

 

[GhostFace]

I bought this one NIB from a friend in 2006. It was your typical AR-10T with a 24 inch barrel. This thing was scary accurate with the original LW barrel. I finally burnt out the barrel and I put on a new 18 inch LW barrel but it's nitride. I have not had time to do proper testing for accuracy yet but from what little I have shot it, it shows promise.

 

[joey fox]

Aero M5, Prs gen 3, MI 3.5lb single stage drop in trigger, Ballistic Advantage 308 16" mid gas, DD 7.62 lite 12.0" rail, Seekins adjustable gas block, Tbac ultra 9, Warne skyline 1.54 0moa mount with swfa 5-20x50. Plan is to shoot it, shorten it to 16" total with pin/weld brake for omega. Then custom barrel to the length I like out of that. Want to put a Mark 5hd scope on it also.

 

[Bigtrucknut]

New to the site, appreciate the membership and the wealth of knowledge. Retired Marine, live in Northern VA, and frequent the ranges at Quantico. Built three LR rifles - .243 Win, .308 Win, and 45 Raptor. All use Aero Precision receivers and handguards, Geissele triggers, and Magpul furniture.

View attachment 7505209

LR243:
-AP M5E upper and lower receivers
-X-Caliber 24" chromoly barrel, .243 Win, 8:1 twist, AR-10 HBAR profile, rear fluting, .0935" gas port, rifle-length gas tube
-AP BCG
-SLR Rifleworks .750" steel adjustable gas block
-Rifle length buffer with tungsten weights (8.85 oz)
-Mil-spec charging handle with Badger Ordnance Tactical Latch installed
-AR-Stoner Precision (3-port) muzzle brake, 5/8-24 thread
-Geissele SSA-E trigger
-Timney 45/90 ambidextrous safety
-15" AP M5E Gen 2 M-Lok handguard
-Magpul PRS 308 Gen 2 stock, MOE grip
-Vortex PST 6-24X scope (MOA), Nightforce 20 MOA base/rings

View attachment 7505210

LR308:
-AP M5E upper and lower receivers
-Ballistic Advantage 18" chromoly barrel, .308 Win, 10:1 twist, low profile gas block, rifle-length gas tube, birdcage muzzle compensator
-AP BCG
-Carbine length buffer (3.80 oz) (intend to swap to heavier buffer)
-Mil-spec charging handle with Badger Ordnance Tactical Latch installed
-Geissele SSA trigger
-Mil-spec safety
-12" AP M5E Gen 2 M-Lok handguard
-Magpul UBR Gen 2 stock, MOE grip
-Nikon P-308 4-16X scope, Nightforce Ultralight rings
-Magpul MBus Pro Offset steel sights

View attachment 7505211

LR45:
-AP M5 upper and lower receivers
-X-Caliber 16" stainless barrel, .45 Raptor, AR-10 Heavy profile, 20:1 twist, .0935" gas port, mid-length gas tube, thread protector
-Brownells LR308 Nitride BCG
-Carbine length buffer (3.80 oz) (intend to swap to heavier buffer)
-Mil-spec charging handle with gun show tactical latch installed
-SLR Rifleworks .875" titanium adjustable gas block
-Geissele G2S trigger
-Timney 45/90 ambidextrous safety
-12" AP M5E Gen 2 M-Lok handguard
-Magpul MOE Carbine stock, MOE grip
-Vortex SPARC II red dot sight

Built a new rifle - Aero Precision LR308 with 24" barrel similar to my LR243 build. So far, SMK 168 and IMR 4895 handload development is going well - best 100 yard 3-shot group.

Specs:
-AP M5E upper and lower receivers
-X-Caliber 24" stainless barrel, .308 Win, 11:1 twist, fluted AR-10 HBAR profile, .0935" gas port, rifle+2 length gas tube
-Brownells bolt carrier, Rubber City Armory bolt
-SLR Rifleworks .850" steel adjustable gas block
-Home-turned stainless A5 length buffer with tungsten weights (9.1 oz), cut AR15 rifle buffer spring
-AP Breach charging handle
-AR-Stoner Precision (3-port) muzzle brake, 5/8-24 thread
-Geissele SSA trigger
-Timney 45/90 ambidextrous safety
-15" AP M5E Gen 2 M-Lok handguard
-Magpul UBR Gen2, MOE grip
-Crimson Trace 4-16x FFP (MOA), Nightforce Ultralight rings