Speed up your M-11 SMG with this drop in SPEED CUBE rate accelerator. This is an easy item to install and drops into the rear of the receiver and will speed up your M-11 up to 1700 rounds a minute. It greatly reduces the stroke of the bolt and fires at rates similar to a micro Uzi. Made of durable Delrin, so it will last for thousands and thousands of rounds and resist heat as well.*
Approximation to protect seller's privacy