A 300 blackout 16" rifle upper with a pistol length gas system for all your ammo weight needs. Capable of accurate long range hog hunts in the flat lands of Texas with super sonics to clearing a house with 220gr subs.
AR15 300blk Pistol Upper Receiver Assembly:
Hardened Arms M4 Feed Ramp Flat Top Receiver
Black anodized mil-spec finished upper receiver
Feed ramps for increased feeding reliability on barrel and upper
Laser etched T-Marked upper receiver
Chrome Moly Steel High End Barrel
1/8 Barrel Twist
Chambered in 300 blackout
16" HBAR Profile barrel with M4 Extension
.750" diameter at gas block
5/8x24 threaded muzzle/barrel
Low profile gas block
Barrel dimpled to secure gas block
Pistol length gas system (allows better cycling of all types of ammo)
A2 flash hider
15" Quad Rail (end cap not available)
Fits any mil-spec AR15 lower receiver.
Hardened Arms uppers are high end, accurate, head spaced, inspected and test fired prior to shipping. They are built using stringent specs, top quality parts and procedures to ensure maximum reliability and performance.
You are responsible for knowing your state laws regarding barrel lengths, pistol, Short barreled rife restrictions. 20% restocking fees if you can not take delivery due to state restriction. Dealer programs are available on our website. Two year warranty against manufacturer defects. Finishes will wear with use, no warranties apply to finish wear.
Due to high order volume and build to order production, time to ship is currently running 3 to 4 weeks.