Home / Parts / MSR Parts - UR / Barrel Nut / 2A Armament – 2A BLDR SERIES AR15 AL CASTLE NUT 2A Armament – 2A BLDR SERIES AR15 AL CASTLE NUT$1294 2A BLDR SERIES AR15 AL CASTLE NUT 240 in stock 2A Armament - 2A BLDR SERIES AR15 AL CASTLE NUT quantity Add to cart SKU: 2A-CNAL-BLK Category: Barrel Nut Product ID: 26088 Description Additional information Description 2A Armament Builders Series, Aluminum Castle Nut, Anodize Black Finish, For AR15 Rifles 2A- CNAL-BLK Additional information Weight 1 oz Dimensions 3 × 3 × 0.5 in Related products 2A Armament – 2A AR15 ALUMINUM BARREL NUT $2588 2A Armament – 2A AR15 ALUMINUM BARREL NUT $2588 2A Armament $2588