HomeAR PartsTimber Creek OutdoorsTCO Lower PartsTCO Castle Nut TCO Castle Nut $6.39 Purchase this product now and earn 6 Headshots! TCO Castle Nut quantity Add to Gun Case Compare Add to Wishlist SKU: TC CN Categories: AR Parts, TCO Lower Parts, Timber Creek Outdoors Tag: Castle Nut Brand: Timber Creek OutdoorsProduct ID: 8407 Download Catalog Description Additional information Product Enquiry Description ****Weapon parts are not eligible for international shipping**** TCO Steel Castle Nut is a Mil-Spec castle nut for use with AR-15 carbine receiver extensions. Proudly made in the U.S.A. Additional information Weight 1 lbs Dimensions 4 × 3 × 2 in Product Enquiry Name Email address Enquiry Related products Build kitsTimber Creek Enforce AR Build Kit $599.99 Quick View This product has multiple variants. The options may be chosen on the product page Compare Compare Out of stock Buffer Tube, Carbon Fiber, Receiver ExtensionCarbon Fiber Buffer Tube (Receiver Extension) $120.00 Quick View This product has multiple variants. The options may be chosen on the product page Compare Compare Trigger GuardAR Oversized Trigger Gruard $19.19 Quick View This product has multiple variants. The options may be chosen on the product page Compare Compare Pistol GripEnforcer AR Pistol Grip $79.99 Quick View This product has multiple variants. The options may be chosen on the product page Compare Compare