SB Tactical SBA6 Lower Build Kit – Black
This bundle combines the black SB Tactical SBA6 Pistol Stabilizing Brace, BRD Mil-Spec Carbine Buffer Kit, and Black Rifle Depot 31-piece AR-15 Lower Parts Kit into one convenient package for completing a compatible AR-15 lower. The SBA6 features a rugged six-position design, integral ambidextrous QD sling sockets, and a full-width rubber cuff for a secure, streamlined setup.
The included BRD buffer kit provides a mil-spec carbine receiver extension, buffer, spring, castle nut, and end plate, while the lower parts kit supplies the internal controls, springs, pins, A2 grip, and fire control components needed for a standard AR-15 lower assembly.
Features
- Includes SB Tactical SBA6 Brace in Black
- Six-position adjustable brace design
- Integral ambidextrous QD sling sockets
- Full-width rubber cuff
- Compatible with mil-spec carbine receiver extensions
- Includes complete BRD mil-spec carbine buffer system
- 7075-T6 hard-anodized receiver extension
- Includes 31-piece AR-15 lower parts kit
- 6.5 lb mil-spec-style fire control group
- Includes A2 pistol grip and standard lower controls
- Convenient all-in-one lower build package
Specifications
SB Tactical SBA6 Brace
- Manufacturer: SB Tactical
- Model: SBA6
- Product Type: Pistol Stabilizing Brace
- Color: Black
- Adjustment Positions: 6
- Receiver Extension Compatibility: Mil-Spec Carbine
- Sling Attachment: Ambidextrous QD Sockets
- Brace Cuff: Full-Width Rubber
- Country of Origin: USA
BRD Mil-Spec Carbine Buffer Kit
- MPN: AM-21-BUFFER-KIT
- Receiver Extension: Mil-Spec Carbine
- Adjustment Positions: 6
- Material: 7075-T6 Aluminum
- Finish: Hard Anodized
- Includes: Receiver Extension, Carbine Buffer Spring, Carbine Buffer, Castle Nut, Receiver End Plate
- Weight: 9.6 oz
- Made in the USA
AR-15 Lower Parts Kit
- MPN: AR15-LP-KT-010
- Platform: AR-15
- Piece Count: 31
- Trigger Pull: Approx. 6.5 lb
- Includes: Trigger group, selector, bolt catch, magazine catch, takedown and pivot components, buffer retainer, trigger guard, A2 pistol grip, springs, pins, and detents
- Designed to meet or exceed Mil-Spec standards
Compatibility Note
Designed for compatible AR-15 lower receivers using a mil-spec carbine receiver extension. The lower receiver itself is not included.


