The SIG SAUER Stock Adapter – 1913 Interface Folding Knuckle lets you upgrade your gun with a Sig stabilizing brace. Install these AR15 Stocks from SIG SAUER using the integral 1913 rail on the receiver. Using the genuine Stock Adapter – 1913 Interface Folding Knuckle while creating a better shooting experience. Convert your Sig now with the easy to install SIG SAUER Stock Adapter – 1913 Interface Folding Knuckle. Specifications for SIG SAUER Stock Adapter – 1913 Interface Folding Knuckle: Manufacturer: SIG SAUER Gun Make: SIG Sauer Color: Black Fabric/Material: Metal Gun Model: SIG Sauer MCX, SIG Sauer MPX Hand: Ambidextrous Condition: New Features of SIG SAUER Folding Stock Adapter for MPX/MCX, 1913 Interface ADAPTER-X-FOLD: Designed for use with SIG SAUER MCX/MPX firearms and compatible SIG SAUER stocks. Allows folding for storage and transport. Attaches to 1913 rail on rear of MCX/MPX. Compatible with standard size buffer tubes. Package Contents: SIG SAUER Stock Adapter – 1913 Interface Folding Knuckle
6 reviews for SIG SAUER Stock Adapter – 1913 Interface Folding Knuckle
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DK –
This product is legit. I ordered two other types of 1913 rail stock adapters and had to return both of them due to fitment issues. This adapter fit perfectly on my BRN-180 lower and is rock solid. If you are running a railed lower and plan on using a buffer tube then this is your choice.
wolfdog1959 –
Solid construction, no complaints. Finish is good. Easy to install and use. Will be a solid addition to any and all builds.Good lockup and easy use. I would recommend this for anyone looking for an easy fold option
Jason Helper –
Works perfectly on any 1913 rail that’s on back of any receiver. This piece allows you to you the post and stock you wish to use. Own a few of these.
Albert Switzer –
Great for any rifle or pistol that has a 1913 rail on the back. Folds easy and is easy to deploy. Opens up your options for a stock or brace to 'anything that fits on a buffer tube" and that's nice.
Kevin –
This is an excellent option for MPX and similar weapons that use the picatinny rail attachment on the rear.
Kevin –
This is a good choice for MPX owners and any similar weapon that uses the rear picatinny stock mount. The buffer tube screws in and is held in place by a set screw. This saves the frustration of using a castle nut in this application. The set screw engages the slot in the buffer tube and gives a wobble free interface. This will also fold. It takes a little force to get it to release so you can fold it. The benefit is, it locks up solid when deployed. It’s a very tight and completely wobble free engagement. The feel will be familiar to anybody who’s spent time with an AR platform rifle. The alignment is perfect for most optics and the option to extend the stock (beyond the length of the “2 rail” style stock or brace) is a really nice benefit. It makes the package feel more natural to me.