The AR-STONER LR-308 Side Charging Upper Receiver assembly chambered in 308 Winchester delivers precision accuracy at an affordable price. The machined billet aluminum upper receiver is combined with an extruded aluminum free float M-LOK handguard and both are matte finished.
This complete upper features a rifle-length gas system, bolt carrier group, SOCOM barrel with a stainless finish and an ultralight 15” free float AR-Stoner M-LOK handguard and a 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.
Chambered in 308 Winchester
SOCOM contour barrel with 1:10 twist rate
Cartridge 308 Winchester
Weight 6.7 Pound
Barrel Length 20 Inches
Twist 1:10 Inches
Barrel Contour SOCOM
Barrel Finish Stainless
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Rifle
M4 Feed Ramps Yes
Upper Receiver Type Side Charging
Barrel Material 416R Stainless Steel
Handguard 15″ M-LOK Ultralight
Bolt Carrier Assembly Included Yes
Muzzle Device Flash Hider
Mil-Spec or Commercial Commercial
Country of Origin United States of America
Shipping Weight 7.075 Pounds
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