The ProMag Industries REM-A2 20-Round Polymer Magazine offers unparalleled durability and reliability for firearm enthusiasts. Expertly crafted in the USA, this magazine is backed by a lifetime guarantee against manufacturer defects, ensuring peace of mind with every use. This magazine features precision-wound springs made from heat-treated chrome silicon wire, rigorously checked during assembly to maintain high-quality standards. 20 - Round Capacity Precise Manufacturing Long Term Reliability Durable Polymer Construction Elevate your shooting experience with a magazine designed for consistent performance.