The Rearden Manufacturing Mini 14x1 LH Muzzle Device is designed for shooters who want a compact, precision-machined mounting solution for suppressor systems built around the widely used Plan B interface. Manufactured from durable 17-4 PH stainless steel and heat treated to the H900 condition, this muzzle device delivers exceptional strength and long-term wear resistance. A black nitride finish provides added corrosion protection and a hardened surface rated at approximately 67 HRC. Engineered for compatibility with Atlas and Atlas XL adapters, the Mini keeps overall length minimal while maintaining secure suppressor alignment through its tapered interface. The Atlas adapter produces a slight overrun of approximately 0.050 inches, while the Atlas XL configuration sits flush with no overrun. Its 14x1 left-hand thread pattern makes it a practical choice for rifles using this common European pattern, offering a reliable suppressor mounting point without unnecessary bulk. Specifications: Thread Pattern: 14x1 LH Material: 17-4 PH Stainless Steel (H900 Heat Treat) Finish: Black Nitride Surface Hardness: Approx. 67 HRC Adapter Compatibility: Atlas and Atlas XL Suppressor Interface: Plan B Compatible Atlas Adapter Overrun: Approx. 0.050 in Atlas XL Adapter Overrun: None Shims: Not Included Get it at Battlehawk Armory!