#Tripwire

Despite thousands upon thousands of units sold, the aftermarket for the 15-22 has languished a hair, likely due to Smith & Wesson keeping much of the mounting and interface proprietary. Its well know the difficulty trying to get standard handguards to interface flush with the receiver, with only various options able to slide back across the gap with the barrel nut adapters in place.

The standard AR-15 charging handle is both loved and hated. Often one of the most underappreciated pieces on the rifle (perhaps only behind the buffer retention pin or castle nut), the charging handle was designed for a very specific mode of operation, namely using two fingers and pulling to the rear over the buttstock. Few can argue this is an ergonomic motion.

Somehow I have been drafted as “The Charging Handle” guy here at TFB. At first, I was suspect of the role, but have grown to enjoy it immensely. I have been witness to innovation on one of the most benign and often neglected AR parts. Also, I have been witness to some… interesting ideas. How did this one fare? The Sintercore Tripwire is in the innovation category; it will just need solid execution during manufacture.