Kaw Valley Precision MACH 3 Modular Linear Compensator Body .223 Caliber/5.56mm/.300 Blk/.350 Legend/.45 ACP 1.125x28 TPI Black Small + MACH Thread. If you've struggled to find a comp the correct length for the perfect "tuck" configure ytheir own By utilizing 1-1/8x28 TPI internal threads the MACH Modular Linear Comp can utilize common suppressor attachments such as a SilencerCo 3-Lug Mount SilencerCo Direct thread mounts etc. KVP has opened up a level of modularity that has never before been offered in the Linear Comp market. The Mach Comps allow end users to run any length comp they want including extra long configurations acting as a placeholder for a suppressor awaiting a Form 4 approval. Each component is machined from 6061-T651 Aluminum and hard coat anodized for wear protection. The MACH system utilizes a 1-1/4 hexagonal wrench flat configuration for easy installation with a standard open end or adjustable wrench. For permanent configurations of a MACH Modular Linear Comp Red Locktite (or similar) thread locker should be considered. If future re-configure of the comp is desired anti-seize on the mating threads is recommended. Note: This kit does NOT include a thread adapter. Caliber Not full auto rated Can be used on the following calibers: .223 5.56 .300 Blk .350 Legend Pistol Calibers: Anything .45 ACP and Smaller Specifications for Kaw Valley Precision MACH 3 Modular Linear Compensator Body: Manufacturer: Kaw Valley Precision Color: Black Projectile Caliber: .223 Caliber Caliber: .350 Legend .300 AAC Blackout .45 ACP Finish: Hard Coat Anodized Fabric/Material: 6061-T651 aluminum Threads per Inch: 1.125x28 Outer Diameter: 1.28 in Length: 3.35 in Weight: 1.9 oz Condition: New Package Contents: Kaw Valley Precision MACH 3 Modular Linear Compensator Body (1) 1in Coupler (2) 1in Spacers (1) Standard End Cap