Faxon ARAK-21 Complete Upper Black

Description

Product Overview

The Faxon ARAK-21 16in 5.56 Complete Upper is a gas piston, AR-15 compatible complete upper receiver designed to install using only the standard take down pin and pivot pin. It ships as a ready-to-run upper package with a 16-inch medium barrel BAU and an adjustable long-stroke piston system, giving you multiple gas settings including a no-gas position for single-shot operation.

Key Features

• Gas piston operation with a long-stroke variable setting system and 4-position adjuster, including a no-gas setting
• Fully machined receiver from aircraft grade 6061-T6 aluminum billet in a one-piece design
• M4-style quad rail layout with a Mil-STD-1913 full-length top rail plus three additional Picatinny rails
• Ambidextrous, non-reciprocating, foldable charging handle relocates left/right without tools
• Model 39 eight-lug bolt and rectangular bolt carrier design with self-contained firing pin retention
• Hardened steel bolt carrier rail system for smoother operation and improved wear characteristics

A rugged, piston-driven solution for dependable AR-15 builds, the ARAK-21 complete upper is designed to drop into your existing lower and get you shooting quickly.