Home / Parts / MSR Parts - UR / Castle Nut / 2A Armament 2A Armament$2588 2A AR15 ALUMINUM BARREL NUT 25 in stock 2A Armament quantity Add to cart SKU: 2A-ALBN-1 Category: Castle Nut Product ID: 25976 Description Additional information Description 2A Armament Part, Black, Aluminum Barrel Nut 2A-ALBN-1 Additional information Weight 2 oz Dimensions 2.5 × 1.5 × 1.5 in Related products 2A Armament $1294