Magpul Black PMAG Gen M3 223 Rem, 5.56X45mm Nato AR-15, M4, M16 10Rd Black Detachable 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 Our 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. Weve added a Proprietary Lock Plate That reduces The Maximum Capacity To 10 rounds, And Its 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.***Made In The USA. Caliber: 223 Rem Capacity: 10Rd Model: PMAG Material: Polymer Model Fit: AR-15 Capacity: 10 Manufacturer: Magpul Industries Corp Mfg Number: Mag1183-Black Model: PMAG Series: Gen M3