The RISR is spring-loaded, and travels to the rear as the charging handle is moved to the rear. When the charging handle is released, the RISR snaps forward. Designed to fit the excellent Magpul CTR butt stock without modification, the RISR only takes a few minutes to install with a phillips-head screwdriver.
Online Only

Maxim Defense MXM47839 Roller Delayed Blowback System Buffer Carbine Fits Most 9mm Luger Mil-Spec AR-15/AR-9 Buffer Tubes
$170.96
Reviews
There are no reviews yet.