This product has 3 slots instead of 2 for use with stocks and braces that use a center lug.
Stock adapter for using Sig style MPX/MCX folding stocks and braces on our 10/22 Chassis or AR-15’s with a 22LR conversion.
Compatible stocks: A3 Tactical, Midwest Industries
If you’re using a Sig or SB Tactical brace, use the original 2 slot version. https://engineeredsilence.com/product/picrailbuffer/
Billet 6061 T6 Aluminum Black Type III Hardcoat Anodizing.
*Gun and stock are not included
*Does not work with standard Semi-auto AR-15 recoil system.
Works with many chassis that accept AR-15 buffer tubes, Brownells BRN-180 uppers, Sig P556 pistols, Kriss Vector pistols as well as many others.