Check the listing for details. Kaw Valley Precision XL Extra Long Slim 9mm Linear Comp 1/2x28 TPI. Color: Black, Condition: New. Listed at 41.95 USD. Kaw Valley Precision designed the KVP XL Linear comp for PCC and pistols. The extra long length of this comp makes it an extremely functional linear comp, by utilizing a HUGE expansion chamber. In addition to the blast controlling functionality, it allows builders the option to use longer Handguards in shorter barreled PCC and pistol builds. Machined from billet 6061 AL, the KVP XL Linear comp is an excellent lightweight, highly functional compensator for your pistol caliber builds! The KVP XL Pistol Caliber Linear Comp is only suggested to be used with PISTOL CALIBERS. The XL Linear Comp is not rated to be used with centerfire rifle calibers. Using this muzzle device with a centerfire rifle caliber will void the warranty on this product and is not recommended. NO CRUSH WASHER NEEDED FOR INSTALLATIONInstall with crush washer or other timing devices if indexing of wrench flats is desiredThread Types: 1/2x28 TPIOverall Length: 4.25 InchesOD: 1.2 InchesCaliber: 9mmWeight: 2.4 ozSurface Finish: Black Type 3 Hardcoat Anodized This part can be used with bolt-action rifles