Rearden MFG 10096 Atlas Alpha, 1.125x28 Threads, Black Nitride Finish

Thread Pitch - 1.125-28 (Silencerco Alpha thread pitch)Length Added: 0.350a ^2Weight: 1.22 oz17-4 PH H900Compatible with short Rearden devices (FHD, Mini, SPB, RPB, R2S)Compatible with Q Cherry Bomb and Other Plan B Compatible Muzzle DevicesNitride FinishThe Alpha Atlas provides a mount interface for suppressors with inside diameter threading of 1.125-28, like the Rugged Obsidian 9 and Obsidian 45. We do not recommend this on suppressors that use the low profile style adapters, like the Omega 9k.