Select Delivery Method:Shipping
Est. Delivery Wed. 6/3 - Mon. 6/8
Gifts Dad Will Love | Gifts Dad Will Love |Shop Gift Guide
☀️Sunny Days Ahead— ☀️Sunny Days Ahead—Shop Now!
Up to 50% Off Top Brands Up to 50% Off Top BrandsShop Now
MK4 Receiver Extension Buffer Tube Lock Nut
852005-55CA9CB
The CMMG Mk4 Receiver Extension Buffer Tube Lock Nut is a replacement part for MSR receiver extensions. This AR castle nut is built to meet military specifications to provide long-lasting and reliable quality. This buffer tube lock nut is great for repairing or building a lower receiver extension. Repair your tactical rifle with the CMMG Mk4 Receiver Extension Buffer Tube Lock Nut.
California Residents
MK4 Receiver Extension Buffer Tube Lock Nut
852005-55CA9CB
The CMMG Mk4 Receiver Extension Buffer Tube Lock Nut is a replacement part for MSR receiver extensions. This AR castle nut is built to meet military specifications to provide long-lasting and reliable quality. This buffer tube lock nut is great for repairing or building a lower receiver extension. Repair your tactical rifle with the CMMG Mk4 Receiver Extension Buffer Tube Lock Nut.
California Residents