The Sons of Liberty Gun Works Maritime Buffer Tube (brand part no. SOLGW-INT10POS-TUBE) is built to SOLGW’s own small-parts line, designed to fit most mil-spec AR-15 lowers as a mil-spec-diameter buffer tube upgrade. It’s the receiver extension that houses the buffer and buffer spring and provides the mounting points for an adjustable stock. This AR buffer system part is sold on its own, separate from the buffer and spring.

Key Specifications

• Sold under SOLGW’s Maritime Buffer Tube product line.
• Built to fit most mil-spec AR-15 lower receivers.
• Functions as the receiver extension that houses the buffer and spring and mounts an adjustable stock.
• Suited for competition, duty, and personal-defense builds alike, per Sons of Liberty Gun Works’ own small-parts design philosophy.

Frequently Asked Questions

Does this include a buffer or spring? No, this listing is the buffer tube itself; a buffer and buffer spring are sold separately.

Will this fit a billet lower? It’s built to fit most mil-spec AR-15 lowers; check compatibility with your specific lower’s receiver extension threading before ordering.

Buy the Sons of Liberty Gun Works Maritime Buffer Tube

A solid mil-spec buffer tube is the foundation for any adjustable-stock upgrade down the road. Order it from our Lubbock, TX gun shop for fast, insured shipping.