It will work for 350 legend. - Magpul AR Rifles Magazine Follower, 223 Rem

I purchased these to fix an issue I was having with some CMMG 20 round magazines. If your magazine has flat coil springs, the spring well area will need to be trimmed a little on the ends where it contacts the inside of the coil. I did sacrifice capacity (now they only hold 16 rounds) due to these being longer than the original shorter follower. That being said, now my rifle feeds ammo properly using these magazines. CMMG was quick to respond to my inquiries but offered no help to rectify the issue. I wish I could upload photos. I had one of their 10 round magazines that fed the rifle properly. I opened them up side by side and the 10 round unit has a longer anti-tilt follower that has been trimmed a little but maintains it's function. I swapped the followers and the feeding problem followed the shorter unit... other than losing capacity it worked in the 20 round magazine. I asked CMMG if they would send me a couple of the longer followers they use in the 10 round magazines but they declined. I asked where I could purchase them, again they declined to sell them to me. Sad that I had to use a competitors product to get theirs to work. Thanks Magpul for giving me the UNFAIR ADVANTAGE of parts that function.