Most AR pistol builders start with black — it’s the most versatile finish, works with any rail system or handguard, and doesn’t lock you into a color scheme you might change later. The SB Tactical SBA3 Black with mil-spec buffer tube assembly is the no-fuss way to finish your AR pistol lower in one order.
You get SB Tactical’s most-adopted brace on the market plus a complete mil-spec buffer tube assembly — everything that goes behind the lower receiver. If you’re still sourcing your lower parts kit, grab that while you’re here.
SB Tactical SBA3 Pistol Brace Black (SBA3X-01-SB)
The SBA3 has been adopted by over 100 firearm manufacturers since its release — that kind of track record doesn’t happen by accident. It’s slim, snag-free, and adjusts through five positions with a push-button release. At 6.75 oz the brace itself adds minimal weight, and the matte black polymer finish takes abuse without showing it. The ambidextrous QD sling socket is built into the brace body — no add-on adapter needed.
- Positions: 5 (push-button adjustment)
- Color: Black
- Model: SBA3X-01-SB
- Weight (brace only): 6.75 oz
- Material: Reinforced polymer, 7075 aluminum extension tube
- Sling mount: Ambidextrous integral QD socket
- Compatible: Mil-spec AR-15 pistol lowers
- Made in USA
Mil-Spec Buffer Tube Assembly
The included Daytona Tactical mil-spec buffer tube assembly gives you the receiver extension, buffer, buffer spring, end plate, and castle nut to complete the rear of your lower. All mil-spec dimensions — works with any mil-spec stock or brace including the SBA3.
- Buffer tube: Mil-spec 1.148″ diameter aluminum
- Buffer and spring: Mil-spec weight and rate
- End plate and castle nut included
What’s Included
- SB Tactical SBA3 pistol brace — Black
- Mil-spec buffer tube (receiver extension)
- Mil-spec buffer and spring
- End plate and castle nut










