Affordable alternative - ProMag Springfield, Inc M1A / M14 .308 Rifle Magazine

This is an affordable alternative if you are unable or unwilling to pay for the OEM SA product. Fits just fine in an M1A but doesn't quite seat (latch on the magazine catch) as nicely as the OEM. I would compare it to the way you close the door to luxury car (OEM SA) vs. a basic compact car (Promag). The magazine otherwise is reliable (without any feeding issues) but I would categorize this as a range accessory. I do like the bluing finish...smooth but not slippery to handle.

I would also be careful loading these under pressure as the edges of these box magazines are not smooth and does not have the anti-tilt follower.