Color
AR-15 .338 ARC 10.5" Pistol Kit | 1:5 Twist | Slick Side | 10" Quad Rail
Build around the increasingly popular .338 ARC cartridge with this Moriarti 10.5" .338 ARC AR-15 pistol kit. This compact configuration combines a fast 1:5 twist barrel, forged slick-side upper receiver, 10" free-float quad rail, 6.5 Grendel-pattern M16 bolt carrier group, Mil-Spec lower parts kit, and complete pistol buffer system.
Designed as a coordinated AR-15 component package, this kit includes the components listed below for completing a compatible configuration. Lower receiver is not included.
Color options are available at the top of the page. Applicable components are Cerakoted in the selected color.
10.5" .338 ARC Barrel
The kit is built around a 10.5" .338 ARC government-profile barrel with a fast 1:5 twist rate and pistol-length gas system. The barrel features a durable nitride finish and is paired with a 10" free-float aluminum quad rail.
Barrel Specifications:
- Caliber / Chamber: .338 ARC
- Barrel Length: 10.5"
- Profile: Government
- Material: 4150 CMV
- Finish: Nitride
- Twist Rate: 1:5
- Gas System: Pistol Length
- Gas Block Journal: .750"
- Muzzle Thread: 5/8x24
- Muzzle Device: A2 Flash Hider
10" Free-Float Quad Rail
The 10" aluminum free-float quad rail provides a traditional four-sided accessory mounting platform while maintaining a compact profile around the 10.5" barrel.
The handguard is Cerakoted in your selected color option where applicable.
Forged Slick-Side Upper Receiver
The upper features a precision-machined 7075-T6 forged M4 flat-top receiver in a streamlined slick-side configuration.
- 7075-T6 forged construction
- M4 flat-top design
- Slick-side configuration
- No forward assist
- Ejection port cover
- Selected components Cerakoted according to chosen color
6.5 Grendel-Pattern M16 Bolt Carrier Group
The kit includes a complete 6.5 Grendel-pattern M16-cut bolt carrier group for the listed .338 ARC configuration.
- M16-cut carrier
- Nitride finish
- Chrome-lined carrier
- MPI tested
- Complete bolt assembly
- Cam pin
- Firing pin
- Firing pin retaining pin
AR-15 Tactical Charging Handle
An AR-15 tactical charging handle is included and Cerakoted to coordinate with the selected color configuration where applicable.
Mil-Spec AR-15 Lower Parts Kit
Includes a Mil-Spec AR-15 lower parts kit containing the listed components for use with a compatible stripped AR-15 lower receiver.
Lower receiver is not included.
Complete Pistol Buffer System
The kit includes a complete AR-15 pistol buffer tube assembly featuring:
- Pistol buffer tube
- Foam covering
- 3 oz buffer
- AR-15 buffer spring
- Required buffer-system components
Kit Highlights
.338 ARC | 10.5" Barrel | 1:5 Twist | Pistol-Length Gas | 5/8x24 Threads | Slick-Side Forged Upper | 10" Free-Float Quad Rail | 6.5 Grendel-Pattern M16 BCG | Tactical Charging Handle | Mil-Spec Lower Parts Kit | Pistol Buffer System | Color Options Available
Important Product Information
This kit is supplied unassembled.
Lower receiver is not included.
Product images are representative and may not be an exact representation of the final product. Appearance and individual components may vary according to selected configuration, availability, and color options.
