Magpul BTR Arm Brace Mil‑Spec — Black Polymer

The Magpul BTR Arm Brace is a stabilizing accessory designed for AR-pistol platforms to improve single-handed employment of large-format pistols. Constructed from polymer with classic Magpul styling, the BTR attaches to Mil‑Spec carbine receiver extensions and uses a simplified, durable adjustment mechanism. It includes an integrated QD cup and an M‑LOK compatible slot to provide ambidextrous sling mounting options. The design emphasizes dependable utility and modular compatibility for AR‑15 pistol builds; the Mil‑Spec tube is not included.

Key Specifications

• The construction uses polymer for durability and reduced weight.
• The finish and color are black to match common AR components.
• The brace is ambidextrous for left- or right-side sling mounting and operation.
• It is designed to fit AR-15 platforms and Mil‑Spec carbine receiver extensions.
• The brace incorporates an integrated QD cup for quick-detach sling hardware.
• It features an M-LOK compatible slot for modular accessory attachment.
• The product is intended to improve single-handed employment of large-format pistols.
• The product model is the BTR Arm Brace by Magpul.
• The package notes that the Mil‑Spec tube is not included.
• The item is Made in the USA.

With straightforward adjustability, ambidextrous mounting options, and proven Magpul engineering, the BTR Arm Brace brings a functional, user-centered stabilization solution to AR‑pistol owners. Its polymer construction and M‑LOK/QD features make it a practical choice for shooters who prioritize modularity and reliable handling in a minimalist package.