The CM Products Classic Magazine is the traditional flush fit GI-style with materials and follower designed for enhanced capacity, durability and reliability. Laser welded stainless steel magazine tube with welded base plate, drilled for optional polymer base pad. FeaturesGI-Style Stainless Steel USGI Style TubeLaser Welded TubeWitness Holes for Visual Round CountStainless Steel FollowerExtra Power Spring for Long-Lasting Tension and DurabilityWelded Base Plate for the Ultimate in DurabilityFlush Fit for Minimal Bulk and Easy ConcealmentSmooth Finish for Easy Insertion / RemovalLong-Lasting Function in Dirty Environments