USGI M4/M16 30-round EPM Aluminum Magazine Brown (5 pack)

5 SURPLUS (MIX OF NEW IN PACKAGE AND OUT OF PACKAGE) ALL NEW TO EXCELLENT CONDITION

Important:  The EPM magazine has a more snug fit than other magazines.  It is designed for use in military grade lower receivers.  We recommend using the EPM in Colt, LMT, FN, KAC and Rock River receivers.  If you are using a commercial receiver, the fit might be too snug to drop release.  We do not guarantee fit with non-military grade forged receivers.  This is not a defect, it is a design.

NSN: 1005-01-630-9508
Part Number: 13058014

This is the USGI Enhance Performance Magazine (EPM) 30-round AR15/M4 curved aluminum magazine for AR-type rifles. This latest gen magazine sports a tan magazine body and a blue follower, for easy identification, and boasts a 300% increase in the mean number of rounds between stoppages when used in the M4 Carbine.

Unlike previous magazines, the EPM uses a new, modified magazine body (and therefore not interchangeable, hence the different color) which presents the rounds at a more favorable angle to the rifle’s feedway. This improves reliability and, importantly, prevents the hardened steel tips of new 5.56mm M855A1 Enhanced Performance Rounds from contacting the aluminum feed ramp section on M4 type rifles.

Optimized to work with the M4/M4A1, M16 rifle, and standard military 5.56mm small arms round, the M855A1. The M855A1, known also as the Enhanced Performance Round (EPR), has been in use since 2010.

Following the EPR’s release, engineering tests of M4/M16 rifles firing the M855A1 showed that the weapons were sensitive to the EPR’s steel tip. A Picatinny Arsenal, N.J. engineering team subsequently made a design change to the magazine that corrected this issue.  The EPM eliminates weapon wear caused by the steel-tipped M855A1 at the upper receiver/barrel extension interface, a condition discovered during testing.

*Please note these magazines were intended for military forces, not OCD perfectionists.  You may see imperfections in the brown finish especially at the bottom of the mags where coating settles/cures. *You may also see visible markings where mags were inserted to check to make sure they drop free* NO RETURNS/EXHANGES*

Not for sale in CA, CO, CT, DC, DE, HI, IL, MA, MD, NJ, NY, OR, RI, VT, and WA