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U.S. Arms M-4 UTAW Pistol w/ Cam-Lock

Complete pistol with Cam-Lock lower, basic muzzle brake, and two 30-round Lancer L5-AWM magazines.

ATF regulated items have restrictions and requirements:

  • Your order will ship only to a Federal Firearms License holder.
  • We are not currently shipping to CA, CT, DC, HI, MD, MA, MN, NJ, NY, or VA.
  • Please be sure to contact your local FFL dealer prior to placing your order to ensure they are still accepting transfers. Some FFL dealers are not open due to Covid-19.
  • Customer must read, understand, and agree to customer terms and conditions.

This product is currently out of stock and unavailable.



5.56 NATO


7.5" standard pistol profile, 1:7 twist, 416 stainless, nickel boron extension

Muzzle Thread

1 / 2 × 28 threads per inch

Mounting System



5.62 lbs


24" – 28.2"


Two 30-round Lancer L5-AWM Black

The USAC firearm line-up is setting new standards in the firearm industry for modern AR type platforms and AR rifle manufacturing. A USAC rifle is one of the most lightweight, durable rifles on the market, and one of the most accurate rifles manufactured today. The design is aesthetically appealing and ergonomically accurate. USAC is a leader in patented recoil mitigation technology, and attends to every manufacturing detail for a precision fit.

Product Benefits

  • Designed and engineered to allow significant weight reduction without sacrificing strength
  • Employs Cam-Lock technology used to create the world’s tightest receiver
  • Machined to aerospace tolerances in a ISO certified aerospace facility

Note: Cerakote items may require up to 2 weeks processing time.