AG Composites LLC is a company with a passion for creating highly functional and reliable products that are designed and manufactured using state-of-the-art technologies and materials. This unwavering commitment to customer satisfaction drives AG Composites' intense focus on innovation, quality, and performance. The bottom metal is machined from 6061 aluminum to ensure smooth operation and a solid upgrade for your rifle. This M5 Profile Bottom Metal uses AICS Magazines. FeaturesAvailable in Short ActionAvailable in Long Action (3.715" mag length)- Example calibers: 30.06, .270, 7mm, 300 Win magAvailable in CIP Long Action Length (3.850" mag length)- Example calibers: 300 PRC, 300 Norma, 28 Nosler