The MEAN EndoMag is a magazine insert that converts your Gen 2 or Gen 3 5.56/.223 PMAG magazine housing into a 9mm magazine to use with a standard AR lower and 9mm upper of your choosing with a Glock or Colt variant 9mm BCG.

• Quickly and easily change calibers from .223/5.56 to a caliber associated with the EndoMag in a Magpul 30-round 5.56x45 PMAGsⓇ (Gen 2 and 3)
• Functions as a magazine!
• No magwell adapter needed!
• Keep your standard 5.56 Multi Caliber lower receiver!
• Comes fully assembled.
• No tools required.
• Keep all your PMAGsⓇ in use, no need to buy additional or specific 9mm magazines.
• Keep your muscle-memory reload-training the same between calibers! Same magazine, same draw, same feel.
• No learning curve when reloading because it is the same magazine you already use!
• Use most of your PMAGⓇ accessories: i.e. mag pouches, storage racks, decals, caliber indicators, etc.
• Not a picky eater. Shoots all 9mm munitions. Hollow points included.
• No modifications to your 5.56x45 lower receiver! Changing calibers is now simply a complete 9mm upper for your AR platform. No nuts, no bolts, no drilling, no bull.
• Last round bolt-hold open feature, just as an AR-15 should function.
• Built-in ejector designed to perform under intense conditions.
• Convert your 5.56x45 PMAGⓇ to 9mm in seconds, and easily convert back to 5.56 without damaging your PMAGⓇ. No permanent changes to anything!
• Specially formulated polymer.
• This product carries a MEAN Lifetime Warranty!

This is for one 3 PACK of Mean Arms 9mm conversion inserts WITH EJECTOR for Magpul pmags.

***There are TWO versions of the EndoMag. One with an ejector and one (ejectorless) without. You will need the ejector version with most standard 9mm blowback uppers. The ejectorless is needed with either the MEAN Bearing Delay Upper Receiver or CMMG RDB 9mm uppers.***