V Seven KMR/Alpha/MCMR Barrel Nut 7068 Aluminum Anodized Finish Black. The V Seven barrel nut is constructed from 7068 aluminum and made to be a replacement item for anyone that needs a top quality nut that will provide solid performance and reliability for their gun. For a great way to make sure you are shooting with some of the best that the AR market has to offer choose the V Seven barrel nut for BCM KMR rails. Specifications for V Seven KMR/Alpha/MCMR Barrel Nut Aluminum: Manufacturer: V Seven Color: Black Gun Model: AR-15 Condition: New Features of V Seven KMR/Alpha/MCMR Barrel Nut Aluminum: Manufactured to Bcm's KMR barrel nut print to be a drop in item for your BCM gunfighter KMR KMR-A Alpha QRF & MCMR Rails Bootleg PIC MOD using KMR mount system Rebel arms rails using KMR mount system Constructed from 7068 aluminum Available in Black mil-spec Type III Hardcoat Anodize Weighs 17 grams Lifetime warranty Package Contents: V Seven KMR/Alpha/MCMR Barrel Nut Aluminum What firearm models does the manufacturer say V Seven KMR/Alpha/MCMR Barrel Nut Aluminum is compatible with? The manufacturer suggests that V Seven KMR/Alpha/MCMR Barrel Nut Aluminum is compatible with AR-15V Seven KMRNUT-AL: Barrel Nut KMR/Alpha/MCMR Rails 7068 Aluminum Anodized Finish Black