The ODIN Works ATLAS 5 is true innovation when it comes to muzzle devices. The ATLAS 5 features a 3-piece modular design that makes installation simple and fast. The significant amount reduced recoil provided by the ATLAS 5 allows the shooter to stay on target for follow-up shots. The core and the cap are machined from 416R stainless steel and black nitrided while the sleeve is made from titanium. Timing and tuning is done with the titanium sleeve, no shims or crush washers needed. Combine with the ODIN Works adjustable gas block for maximum tuning. A 1/2-28 threads for 22 caliber. Mfg: Odin Works Inc.