2 mins Receiver slop is the common name for the amount of movement between the upper and lower receiver of the AR-15/AR-10 weapons platform. Although it is commonly accused of causing functional or accuracy issues, it is in reality just an annoyance and side effect of mating Mil-Spec parts. No two AR-15 parts are ever exactly the same. […]
Category: Armorer Files
Blog, Post about armorer considerations for the Piston Operated platform in AR15 and AR10
