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 ForegripRugged Barrier Stop $31.99 Quick ViewAdd to cart This product has multiple variants. The options may be chosen on the product page Compare Compare BarrelsTCO 5.56 Barrel $199.99 Quick ViewAdd to cart This product has multiple variants. The options may be chosen on the product page Compare Compare Out of stock Carbon Fiber, RailsTimber Creek Carbon Fiber Enforcer Handguard $255.99 – $329.99 Quick ViewSelect options This product has multiple variants. The options may be chosen on the product page Compare Compare Build kitsTimber Creek Outdoors AR Enforcer Kit (White) $599.99 Quick ViewAdd to Gun Case Compare Compare