The Magpul PMAG GEN M3 30-round magazine delivers reliable feeding for 300 Blackout ammunition in AR-15 platform rifles. This polymer magazine addresses common feeding issues with subsonic and supersonic 300 BLK loads through optimized internal geometry and follower design.
What Makes This Different
The GEN M3 design incorporates a modified follower and spring system specifically engineered for 300 Blackout's unique cartridge dimensions. Unlike standard 5.56 magazines that can cause feeding problems with 300 BLK's wider case head, this magazine maintains consistent cartridge presentation angles. The ribbed exterior texture provides secure grip during tactical reloads, while the translucent window allows quick round counts without magazine removal.Key Features
- Optimized geometry for reliable 300 Blackout feeding with both subsonic and supersonic loads
- Anti-tilt follower prevents nose-diving and double-feeds during rapid fire
- Translucent body with round count windows for instant capacity verification
- Textured gripping surface for positive control during magazine changes
- Self-lubricating polymer construction resists corrosion and impact damage
- Fits all STANAG 4179 magazine wells including AR-15, M4, and compatible platforms
- Over-insertion stop prevents magazine seating too deep in magwell
Technical Specs
- Capacity: 30 rounds
- Caliber: 300 AAC Blackout
- Material: Impact-resistant polymer construction
- Weight: 4.2 ounces empty
- Length: 7.3 inches overall
- Width: 1.0 inch at widest point
- Compatibility: All STANAG 4179 magazine wells
- Color: Black polymer finish
- Manufacturer: Magpul Industries, Made in USA
