1st Look: CMMG 5.7 Upper & Trijicon SRO
This video provides a first look at the CMMG 5.7 Upper Receiver, notable for its use of standard AR-pattern magazines, allowing it to be mounted on any standard AR lower receiver. The review highlights its compatibility with 5.7x28mm ammunition and pairs it with a Trijicon SRO optic on a Scalarworks Leap mount. The presenter attempts the Bear Solutions Cold Start drill, discusses the firearm's performance, and later tests it suppressed with a Q Erector silencer, noting its pleasant shooting characteristics and potential for new shooters.











