TO ORDER THESE MAGAZINES JUST FOLLOW THIS LINK TO CORSAIR SPORTS: https://www.corsairsports.com/products/checkmate-m1a20-m1a20-3765

20 Round Capacity 

Parkerized

USGI specifications

Original Equipment Manufacturer to the United States Military.

American milled steel and are coated with a specified corrosion resistant phosphate finish.

Anti-tilt follower design ensures propert feed every time.

High performance government specification spring.