Description
CMCs critical sear engagement surfaces have a proprietary machining process that renders superior surface finish and dimensional control. As compared to their competition, the techniques used to establish a 1-2 RMS surface finish as opposed to EDMing which leaves a pitty 32 RMS, compared to a mirror which is 0 RMS. CMC’s innovative, self-contained and easy-to-install AR-15 trigger groups, have been completely re-tooled to maximize production capacities, incorporate new design enhancements and reduce cost. CMC’s AR-15 trigger groups have always yielded exceptional trigger pull dynamics for our tens of thousands of satisfied customers.



![[4225-067] Feed Handle for WEN 4225](https://www.greatdiyhardware.com/wp-content/uploads/2026/07/4225-067-feed-handle-wen-4225.webp)
