Overview of the SB Tactical SBA4™ Pistol Stabilizing Brace | SBA4
The SB Tactical SBA4™ Pistol Stabilizing Brace is a durable, adjustable pistol stabilizing brace designed for platforms that accept a mil-spec carbine receiver extension (not included). Built after the proven SBM4 design, the SBA4 adds five adjustment positions so you can set the length that feels right and keep it consistent. The MPN SBA4 identifies this brace family across all color variants.
From the images, the SBA4 features a rigid polymer body with molded ribbing, a reinforced triangular support strut, and a wide rear opening secured by an adjustable nylon strap. The rear of the brace includes an integral, ambidextrous QD sling socket, allowing flexible sling placement without extra hardware. The overall profile stays compact while offering solid support and repeatable positioning.
This brace is often chosen for range use, training builds, and duty-style setups where stability and consistent fit matter. Instead of settling for a fixed length, you can adjust the SBA4 to match your preferred handling. It is veteran-designed and made in the USA, and it is available in Black, Flat Dark Earth, Olive Drab Green, and Stealth Gray to match common firearm finishes.
Key Features
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Fit: All platforms capable of accepting a mil-spec carbine receiver extension (not included)
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Adjustment: Five-position adjustable with length settings of 7.5 inches, 8.25 inches, 8.8 inches, 9.5 inches, and 10.25 inches
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Sling Support: Integral, ambidextrous QD sling socket
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Strap: Adjustable nylon strap for a custom fit; strap width 1 inch
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Dimensions: Maximum width 2.25 inches; cavity depth 6.75 inches
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Weight: Listed as 10 oz in the product prompt; manufacturer documentation lists 10.25 oz
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Design Lineage: Designed after the SBM4
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Origin: US veteran designed and proudly made in the USA
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Colors: Black, Flat Dark Earth, Olive Drab Green, Stealth Gray
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MSRP: $124.99
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Variant Details:
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Black: MPN SBA4X-01-SB, UPC 699618783452
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Flat Dark Earth: MPN SBA4X-02-SB, UPC 699618783469
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Stealth Gray: MPN SBA4X-03M-SB, UPC 699618783476
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Olive Drab Green: MPN SBA4X-04-SB, UPC 699618783483
Compatibility
Platforms and fit
The SBA4 fits all platforms capable of accepting a mil-spec carbine receiver extension. The receiver extension is not included.
Limitations to know
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Requires a mil-spec carbine receiver extension
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Does not fit commercial-spec extensions
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Receiver extension is not included
Intended Users
The SBA4 is designed for users who want a stable, repeatable setup on a compatible platform. Law enforcement professionals, EMS personnel, military users, firearms instructors, and range-focused shooters often choose it for training and controlled handling. It is also commonly used on duty-style or compact builds where adjustable length and sling integration are important.
What’s Included
Not included:
Frequently Asked Questions about SBA4
Question 1
Does the SBA4 include a mil-spec carbine receiver extension?
No. The SBA4 does not include a mil-spec carbine receiver extension. You must provide your own compatible extension.
Question 2
How many adjustment positions does the SBA4 have?
The SBA4 offers five adjustment positions to fine-tune length and fit.
Question 3
What are the overall dimensions of the SBA4?
The brace has a maximum width of 2.25 inches, a cavity depth of 6.75 inches, and adjustable length settings ranging from 7.5 inches to 10.25 inches.
Question 4
Is the QD sling socket ambidextrous?
Yes. The SBA4 includes an integral QD sling socket that can be used from either side.
Question 5
How do I choose the correct color variant?
Select the color that matches your build and confirm the variant MPN and UPC. Black is SBA4X-01-SB, FDE is SBA4X-02-SB, Stealth Gray is SBA4X-03M-SB, and Olive Drab Green is SBA4X-04-SB.
