Continue shopping “AR15 Castle Nut – BLEM” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal × AR15 Barrel Nut $ 6.90 AR15 Barrel Nut quantity $ 6.90 × AR15 Gas Block (.750", Black, Aluminum) $ 23.35 AR15 Gas Block (.750", Black, Aluminum) quantity $ 23.35 × Modular AR Upper Insert - Slick Side Blockoff (Raw/Blem) $ 3.50 Modular AR Upper Insert - Slick Side Blockoff (Raw/Blem) quantity $ 3.50 × AR15 Castle Nut - BLEM $ 2.95 AR15 Castle Nut - BLEM quantity $ 2.95 Coupon: Apply coupon Update cart You may be interested in… AR15 12″ Keymod Handguard (C-Cut)Rated 0 out of 5 $ 69.69 Add to cart Email me when availableAR15 16″ 5.56 NATO Government Profile Barrel wind chime rodsRated 0 out of 5 $ 84.99 Read more Email me when availableAR Carbine Length Gas Block and Gas Tube Combo!Combo!Combo!Rated 0 out of 5 $ 34.99 Read more Cart totals Subtotal $ 36.70 Shipping Calculate shipping Country / region: Select a country / region… Puerto RicoUnited States (US) State / County: City: Postcode / ZIP: Update Tax $ 0.00 Total $ 36.70 Proceed to checkout