BTR Arm Brace – Mil-Spec

Improved stability for large-format pistols

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$59.95 Regular Price $59.95
$59.95 Regular Price $59.95
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Magpul BTR Brace for Mil-Spec buffer tubes on a sling stabilized AR15 being fired by one handMagpul BTR Brace for Mil-Spec buffer tubes on a sling stabilized AR15 being fired by one hand

Product Details

The Magpul BTR is an AR arm brace designed to improve the single-handed employment of large-format pistols. The BTR utilizes Magpul design and engineering to offer a stabilizing accessory with a robust feature set and trusted Magpul quality. 

With classic Magpul aesthetics, the BTR is compatible with Mil-Spec carbine receiver extensions and employs a simplified, durable, and easy to use adjustment mechanism. An integrated QD cup and M-LOK compatible slot provide ambidextrous sling mounting options and enable stabilizing sling tension to be applied, drastically increasing single-handed control of the firearm. With a straight-forward design and Magpul innovation, the BTR is a simple solution to improving your AR pistol.

Made in the USA.

Magpul BTR Brace for Mil-Spec buffer tubes on a sling stabilized AR15 being held by one handMagpul BTR Brace for Mil-Spec buffer tubes on a sling stabilized AR15 being held by one hand


Designed and intended for use as a stabilizing accessory for one-handed firing

M-LOK compatible slots for additional sling mounting options  

Ambidextrous rear QD cup allows sling tension to be applied while firing with one hand to improve stability 

Toolless, single-handed adjustment


High-strength polymer and metal construction

Magpul BTR Brace for Mil-Spec buffer tubes with rear QD sling attachmentMagpul BTR Brace for Mil-Spec buffer tubes with rear QD sling attachment


Export Administration Regulations Controlled Product

EXPORT NOTICE: This is an item controlled for export by the Export Administration Regulations (EAR) under the Commerce Control List (CCL). These controls take the form of export regulations and license requirements. As part of the express consideration provided for receipt of Magpul's goods, technical data and/or services, you, our customer, acknowledge that the export, re-export or other transfer, directly or indirectly, of the goods, technical data and/or services provided by Magpul in violation of U.S. law is prohibited. Customers acquiring controlled goods, technical data and/or services from Magpul shall be responsible for obtaining any necessary U.S. or other government authorization required to ensure compliance with applicable export laws. (See Magpul Shipping and Returns FAQ for more information).

WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Magpul Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.

Technical Specifications

More Information
Other Specs

Compatible with Mil-Spec carbine receiver extensions.


Mil-spec sized carbine receiver extension equipped AR Pistols. Not compatible with proprietary, pistol, or commercial-spec receiver extensions. All ATF, NFA, state and local rules and laws apply, where applicable. 

ATF has ruled that attaching stabilizing braces with certain features will not make a firearm NFA controlled. This product conforms to this ATF precedent. As of December 10, 2019, ATF is no longer issuing classification letters for firearm accessories, including stabilizing braces.  

This product is designed and intended to serve only as a forearm brace for one-handed firing of a pistol.  It is not intended to be fired from the shoulder. Any redesign or reconfiguration of this product may render the attached firearm NFA controlled. The user is exclusively responsible for determining the correct application of state and federal law based on the unique configuration of each firearm. 



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