Most reliable enhanced anti tilt follower by magpul - Magpul AR Rifles Magazine Follower, 223 Rem

As described, enhanced yellow anti tilt follower for your USGI magazine for the .556 caliber. I used this to replace my 350 legend 20 round duramag standard capacity orange anti tilt follower that they provided. I did some modification on the this yellow anti tilt follower, a little rotary tool did the magic, now the spring fits perfectly. All and all best enhanced anti tilt follower by Magpul, highly recommended if you’re having feeding issues with your USGI mags for your ar15 platform.