Great Lakes Firearms & Ammo Glfa ar-15 complete upper 6.5 grendel 20" black FEATURES:
-Caliber: 6.5 Grendel
-20" Chrome Moly Barrel
-1:8" Twist
-A3 upper w/ M4 feed ramps
-15" floating MLock handguard
-GLFA big bore muzzle brake
-Aluminum/Steel
Other Features: A3 upper with m4 feeed ramps, 5/8"-24 muzzle threads, 15" m-lok handguard, glfa big bore muzzlebrake,