Spear Mfg AR-15 6" Multi Chamber Muzzle Brake AR15 Compensator
Ratings 0 (low) to 9 (best) and Specifications:CATEGORY: Muzzle BrakeFLASH: 0RECOIL: 7SIDE BLAST: 0RISE: 5LENGTH: 6.0"DIAMETER: 1.0"WEIGHT: 3.2 oz (5.56)MATERIAL: AluminumFINISH: Black Annodized
Solid bottom minimizes dust printing when shooting prone. Easy installation, secured with the supplied lock-nut.
1/2 x 28 tpi 5.56 .223 AR15 Caliber