GG&G BRTTA Stock Adapter for Magpul SGA – Remington 870

The GG&G BRTTA Stock Adapter enables Remington 870 owners to mount a Magpul SGA stock while maintaining compatibility with factory or aftermarket receiver extensions. This adapter bridges the gap between the SGA stock design and various buffer tube configurations, expanding your stock options beyond the standard Remington thread pattern. It's a straightforward solution for shooters who want the ergonomics and adjustability of the SGA platform on their 870 without permanent modifications to the receiver.

Machined from aircraft-grade aluminum with a hard-anodized finish, the adapter installs between the receiver and stock assembly. Installation requires basic tools and attention to proper torque specs—gunsmithing experience is helpful but not mandatory for mechanically-inclined shooters. The adapter maintains structural integrity under recoil and allows proper stock adjustment without play or wobble.

• Part Type: Stock Adapter
• Compatible Firearms: Remington 870
• Compatible Stocks: Magpul SGA
• Material: Aircraft-Grade Aluminum
• Finish: Hard Anodized
• Installation: Moderate Mechanical Skill Recommended
• Includes: Mounting Hardware