AR-15 Pistol Upper Assembly (8.5" Nitride Barrel & 7" Lightweight M-Lok Handguard) 1:7 Twist



This ultra-compact AR-15 upper’s the perfect way to affordably build a quality AR pistol. Featuring a shorty 8.5” barrel made from mil-spec 4150V with 1:7 twist rate, this unit’s guaranteed to provide precision with any 5.56 loads. The barrel ships with a nitride finish. Nitride greatly increases barrel life while affording greater accuracy than chrome-lining.

A free-float 7” M-Lok handguard keeps things balanced and nimble, while offering plenty of space for irons and accessories. Out back, a forged 7075 T6 receiver gets the mil-spec stamp of approval. Inside, M4 feed ramps, an M16 BCG, and pistol gas system keep everything running smooth. Backed by Lifetime Warranty.

Barrel Features & Specs:

  • Barrel Length: 8.5″
  • Gas System: Pistol-Length
  • Barrel Profile: Heavy
  • Barrel Steel: 4150V
  • Barrel Finish: Nitride
  • Chrome Lining: None
  • Muzzle Thread: 1/2-28
  • Chamber: 5.56 NATO
  • Twist Rate: 1:7
  • Barrel Extension: M4
  • Diameter at Gas Block: .750
  • Gas Block Type: Low-Profile
  • Muzzle Device: A2 Flash Hider
  • Overall length: 17”

Receiver Features & Specs:

  • Receiver Material: Forged 7075 T6 Aluminum
  • Receiver Type: Flattop M4
  • Handguard Type: 7” Lightweight M-Lok (Free-Float)
  • Bolt Carrier Group Included: Yes
  • Bolt Steel: Carpenter 158 Steel
  • Bolt Carrier Profile: Full-Auto (M16)
No FFL required  Made in the USA  Lifetime Warranty

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily only ships within the United States. Federal legislation dictates we cannot ship our products internationally.