This is the Magpul PMAG GEN M3 20-round magazine for AR-15 rifles.

Featuring all-new GEN M3 technology, this is one of the best 20-round AR-15 magazines on the market.

• For AR-15 / M4 rifles in .223 Remington / 5.56 NATO
• Long-life stainless steel spring
• 4-way anti-tilt follower
• Simple tool-less, flared floorplate for easy cleaning
• Low profile ribs and new, aggressive front and rear texture
• Paint pen dot matrix