The AR 7.62 x 39 platform has been a problem for magazines since inception; this is no longer the case. CPD® re-designed the magazine from the ground up and the results have been astounding. Due to its specific geometry combined with CPD®'s proprietary Teflon coating, this stainless steel magazine continues to keep firing on all cylinders with the dirtiest of ammunition. Available in 5rd, 10rd, 20rd, 28rd, and 30rd. A lot of manufacturers are starting to produce new AR rifles because of this magazine.