Description
The Magpul BTR Arm Brace – Mil-Spec is a streamlined, high-performance stabilizing brace built for AR-15/M4 large-format pistols, improving single-handed control and accuracy with Magpul’s signature ergonomics and durable construction. It mounts directly to standard Mil-Spec carbine receiver extensions, featuring tool-less single-handed adjustment for rapid positioning, an ambidextrous rear QD sling cup to apply stabilizing sling tension during one-handed firing, and an integrated M-LOK compatible slot for additional sling or accessory mounting options. This brace combines a simplified, robust adjustment mechanism with classic Magpul aesthetics to deliver enhanced recoil management and firearm control, making it an excellent choice for AR pistol builds focused on reliability, speed, and tactical versatility.
Color: Black
Features
- Tool-less, single-handed adjustment for fast and easy deployment or repositioning
- Ambidextrous rear QD sling cup allows sling tension application during one-handed firing to significantly improve stability and control
- Integrated M-LOK compatible slot provides ambidextrous sling mounting flexibility and additional accessory options
- High-strength polymer and metal construction for lightweight durability and long-term reliability
- Direct compatibility with Mil-Spec carbine receiver extensions on AR-15/M4 pattern pistols (not compatible with proprietary, pistol-length, commercial-spec, or other non-mil-spec extensions)
- Simplified, straightforward design with classic Magpul aesthetics for enhanced single-handed firearm handling
- Designed and intended solely for lawful use as a stabilizing brace for one-handed pistol firing (not for shouldered use)
- Made and engineered in the USA with Magpul quality assurance









