For 9mm and .40 Glock's only.

Condition the hardest of immediate actions with the Hard Malfunction Device. This device, when loaded into your 9mm or .40 Glock magazine will cause a malfunction that only a full magazine strip remediation will solve.

(Some manual trimming or adjustment of the device may be required. Device is a hard plastic and can be shaped as necessary with a pocket knife. Please adjust carefully and at your own risk. DMT/SMT assumes no responsibility for damage or injury caused by using or adjusting a hard malfunction device. We strongly encourage purchasers to get professional training before conducting any new firearm manipulation skill.)