Hoffman's original operates only in his design of 3d printed lowers, and I modded the parts to operate inside of a milspec decrease. An image of a forced reset trigger from ATF’s Ammunition Know-how Division: Technical Bulletin 22-01. Forced reset triggers are mounted by way of substitution in the trigger https://frttrigger45446.newbigblog.com/40282022/5-simple-techniques-for-forced-reset-trigger