PMA 16" UPPER RECEIVER CARBINE-LENGTH 5.56 NATO 1/8 NITRIDE 13" M-LOK B5 SYSTEMS RIFLE KIT
- Barrel Length: 16"
- Barrel Profile: SOCOM
- Gas System: Carbine-length
- Barrel Steel: 4150V Chrome Moly Vanadium
- Barrel Finish: Nitride
- Chrome Lining: No
- Muzzle Thread: 1/2x28
- Chamber: 5.56 NATO
- Twist Rate: 1:8
- Barrel Extension: M4
- Diameter at Gas Block: .750
- Gas Block Type: Low-profile
- Muzzle Device: A2 Flash Hider Muzzle Device
- Receiver Material: Forged 7075 T6 Aluminum
- Receiver Type: M4
- Handguard Type: PMA 13.5" M-LOK Rail
- Bolt Carrier Group Included: Yes
- Bolt Carrier Profile: Full-auto
- Charging Handle Included: Yes
- Build Kit: B5 Systems Stock and Grip
Barrel: 16" 4150V Chrome Moly Vanadium steel, nitride treated for durability and accuracy, and chambered in 5.56 NATO with a 1 in 8" twist. SOCOM Profile. a steel low profile gas block and a PMA Flash Hider.
Handguard: PMA 13" Premium M-LOK Rail,
Upper: PMA Forged 7075-T6 A3 AR upper receiver is made to meet MILSPECs and finished in hard coat type III anodized black for durability. These uppers are made for us right here in the USA by our ISO 9001 certified machine shop.
Bolt Carrier Group: Our bolt carriers are made of 8620 steel and machined to USGI standards. Gas key is secured with grade 8 fasteners and staked per mil-spec. The extractor is machined from billet steel. The components are all properly heat treated to ensure the proper hardness and then nitrided for a slick finish that aids in functioning. Each BCG is then individually inspected on site for quality.
Build Kit: A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Features a B5 Systems Grip, Lower Parts Kit, also includes a B5 Systems Buttstock, castle nut, latch plate, carbine buffer spring, 5 positioning mil-spec buffer tube, and standard carbine buffer.
*Shaded Grey items are not included