This is the GEN M3 30-round magazine for HK G36 rifles, manufactured by Magpul Industries.

• Legendary Magpul Polymer for next-generation impact and crush-resistant polymer construction
• Ribbed gripping surface and aggressive front and rear texture for positive magazine handling
• 30-round reliability and no stoppages for your Heckler & Koch G36 compatible weapons
• Constant-curve internal geometry, over-travel insertion stop on the spine and a long-life USGI-spec stainless steel spring ensure smooth feeding
• The anti-tilt, self-lubricating follower ensures a smooth feed and magazine reliability