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Alpha Atlas Adapter provides a mount interface for suppressors with inside diameter threading of 1.125-28. Compatible with Rugged Obsidian 9 and Obsidian 45. Not recommended for suppressors using low profile style adapters such as the Omega 9k. Specifications: weight 1.22 oz, length added 0.350 in (8.89 mm), threads 1.125-28 (SilencerCo Alpha pitch). Compatible with short Rearden devices (FHD, Mini, SPB, RPB, R2S) and Q Cherry Bomb adapters.
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