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This is our standard 6-Position Mil-Spec buffer tube/receiver extension. It's made of durable CN..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..