Bushmaster AR-15 M4A3 Complete 16" Upper Receiver, 5.56 with Removable Carry Handle, 1:9 Chrome Lined
This versatile M4A3, chrome lined 16” upper recevier assembly has the “cutout” profile designed to mount the M203 Grenade Launcher. The A3 configuration flat-top receiver with a Removable Carry Handle - adjustment range is from from 300 to 600 meters (1/2 M.o.A. elevation and 1/2 M.o.A. windage). The 5.56mm/.223 Rem. caliber 16" barrel is chrome lined in both bore and chamber for long wear life and ease of maintenance. For control of muzzle flash and muzzle rise, a “birdcage” type suppressor is factory installed. A mil. spec. manganese phosphate outer coating insures protection against corrosion or rust on the barrel and all critical steel parts of the upper. This upper comes with a removable carry handle turning the upper into a versatile flat top for mounting optical devices or accessories. Complete, assembled, and ready to shoot. Includes charging handle & bolt carrier group.
- Caliber: .223 Rem/ 5.56mm
- Upper Style: Flat Top A3 with Removable Carry Handle
- Barrel Length: 16" M4 Profile
- Barrel Material: 4150 steel
- Bore: Chrome Lined
- Rifling: 1:9 RH Twist, 6 Lands & Groves
- M4 feed ramps
- Hard chrome lined bore & chamber
- Muzzle Brake: A2 Birdcage
- Gas System: Carbine Length
- Front Sight: Standard A2 Post w/ Bayp Lug & Sling Swivel
- Factory headspaced, test-fired and ready to use.
- Mfg. Part #: 91822
- Made in the USA by Bushmaster
NOTE: Complete AR-15 Upper receivers CANNOT be purchased with any complete (with lpk & stock installed) AR-15 lower receivers. Orders placed with both types of products will be amended.