The PMAG 10/30 AR/M4 GEN M3 is a polymer magazine for AR15/M4 compatible weapons. It was designed for users who reside in areas with magazine capacity restrictions but desire a standard 30-round magazine form. Built in-line with other PMAGS, the PMAG 10/30 provides the same next-gen impact and crush resistance, constant curve geometry, and long-life stainless-steel spring to ensure smooth feeding. Added is a proprietary lock plate that reduces the maximum capacity to 10 rounds, and it's permanently secured by an aluminum rivet. A lock plate tab that's clearly marked for capacity is also included. With the standard 30-round magazine form, the PMAG 10/30 maintains mag pouch compatibility while complying with local restrictions. ***Not designed or intended to be modified in any way.***