The AR-STONER AR-15 Side Charging Upper Receiver assembly delivers precision accuracy at an affordable price. The machined billet aluminum upper receiver is combined with an extruded aluminum free float handguard and both are Type III hard coat anodized.

This complete upper features a carbine gas system, a mil-spec bolt carrier group, 16” heavy profile barrel with a Phosphate finish and a Ultralight free float AR-Stoner M-Lok handguard and an A2 flash hider.

Attach your favorite sling to the free float handguard with integrated QD mounts and use the precision M-LOK cutouts at the three, six, and nine o'clock positions for mounting MIL-STD 1913 Picatinny rails or other direct-attach M-LOK accessories.

Product Information
Cartridge 223 Wylde
Color Black
Finish Anodized
Material Aluminum
Weight 5 Pound
Barrel Length 16 Inches
Twist 1:8 Inches
Threads 1/2"-28
Barrel Contour Heavy
Sights No
Barrel Finish Black Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Carbine
M4 Feed Ramps Yes
Upper Receiver Type Side Charging
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 12" M-LOK Ultralight
Bolt Carrier Assembly Included Yes
Muzzle Device Flash Hider
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15
Delivery Information
Shipping Weight 5.765 Pounds