This AR-Stoner carbine length upper features a mil-spec bolt carrier group, phosphate finish, A2 fixed front sight and a government profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. With a 1 in 9" twist, the 16" barrel provides outstanding accuracy with a wide range of projectiles. This pre-ban style upper includes a bayonet lug and A2 flash hider. Supplied without a rear sight, this upper is a great platform for a red dot sight or iron sights (both sold separately).

The AR-STONER Carbine Kit also includes a M4 mil-spec 6-position stock assembly. The buffer tube is machined from 6061-T6 aluminum and given a hard coat anodized finish to withstand years of abuse. The 6-position telescoping stock features a built-in sling swivel to mount your favorite rifle sling.

Included in the Carbine Kit is the AR-STONER Lower Parts Kit which includes everything needed to build a complete lower receiver, except a stripped lower receiver. All parts are made to standard military specifications.

Lower Parts Kit Includes

Bolt Catch

Bolt Catch Plunger

Bolt Catch Roll Pin

Bolt Catch Spring

Buffer Retainer

Buffer Retainer Spring

Disconnector

Disconnector Spring

Hammer

Hammer Pin

Hammer Spring

Magazine Catch

Magazine Catch Button

Magazine Catch Spring

A2 Pistol Grip

Pistol Grip Lock Washer

Pistol Grip Screw

Pivot Pin

Pivot Pin Detent

Pivot Pin Detent Spring

Safety Selector

Safety Selector Detent

Safety Selector Detent Spring

Takedown Pin

Takedown Pin Detent

Takedown Pin Detent Spring

Trigger

Trigger Guard

Trigger Guard Roll Pin

Trigger Pin

Trigger Spring

M4 Stock Assembly Includes