Sub-MOA accuracy. Perfectly gassed.
It's surprisingly easy to punch 12" of steel at 800 meters with .308 with the AT platform -- you just need the right barrel. That's why we configured this rifle kit with one of the most accuracy AR-10 barrels in the industry. Precision-rifled with a heavy profile from 416R stainless, and fluted to reduce barrel harmonics and promote heat reduction, this is the sub-MOA kit you need to reach out and ring targets at distance.
This side-charging LR-308 upper assembly comes with a prebuilt, making finaly assembly easier. Its side-charging upper receiver makes cycling easier in the prone, while its free-floated M-LOK handguard preserves accuracy while providing a sturdy host for your bipod.
What’s Included
This is not a firearm. It includes an pre-built upper receiver, bolt carrier group, and a charging handle.
.308 AR Upper Assembly Specs
Barrel
- Chamber: .308 Winchester
- Contour: Heavy Barrel
- Length: 20”
- Twist Rate: 1:10
- Gas System: Rifle-length
- Gas Port Barrel Dia: 0.076”
- Muzzle Threads: 5/8x24
- Material: 416R Stainless Steel
- Finish: Stainless Steel with Black Nitride
- Process: Button Rifled
- Lining: Stainless
- Muzzle: A2-style "birdcage"
Handguard
- Attachment System: 15" M-Lok
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: LR-308 Flattop
- Material: Forged 7075-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Bolt Carrier Group
- Profile: M16/Full-Auto
- Steel: 9310 Tool, HPT/MPI-tested
- Exterior: Black Nitride
- Interior: Parkerized
- Gas Key: Staked, Chrome-lined
- Charging Handle: Included
Lower receiver not included.
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