SIG Sauer Stock Adapter - 1913 Interface Folding Knuckle

The SIG Sauer 1913 Interface Folding Knuckle Stock Adapter lets MCX, MPX, and similar firearms with a rear 1913 rail section accept a standard AR buffer tube and stock. It solves a problem AR-pattern shooters have faced for years: mounting a folding stock without giving up a normal buffer tube interface.

Note: Confirm state and local laws before installation, and be aware that adding a stock may affect a firearm's classification.

Features:

• Fits a standard 1913 rail section
• Allows mounting of an AR buffer tube for folding stocks
• Steel construction
• Folding design

Firearms like the MCX and MPX share a section of 1913 rail on the rear of the receiver, and this adapter attaches directly to that rail so a standard AR buffer tube, and the stock that goes with it, can be installed in a folding configuration. The steel construction is built to hold up to repeated folding and use in the field.

SIG Sauer is a world-renowned firearms manufacturer with a history stretching back to 1864, known for quality, reliability, and innovation across firearms, suppressors, optics, and ammunition.