Description
The MR920 accommodates Gen4 Glock recoil assemblies, but includes Shadow System’s own modified Gen3 recoil system. This single spring system is user adjustable for those wishing to tune the gun with different spring weights. The included spring is a conventional weight flat wire spring but is manufactured from higher-quality chrome silicon material.
All internal slide parts are machined from billet stainless steel. The extractor is Shadow Systems own high-reliability enhanced LCI extractor. T
