Built for use with AR15, M16, and M4 rifles, the D&H Tactical AR-15 6.5 Grendel 10-Round Rifle Magazine is engineered for smooth operation and reliable performance. This standard, 10-round magazine is made of strong carbon steel that's protected with a nitrocarburized (QPQ) Hostile Environment Finish. The stainless steel 17-7PH spring delivers years of unrelenting tension and total protection against corrosion. The proprietary, limited-tilt follower from D&H Tactical has been specifically made for 6.5 Grendel cartridges and trustworthy operation. For use with AR15, M16, and M4 rifles Carbon steel construction Nitrocarburized (QPQ) finish Stainless steel 17-7PH spring Limited-tilt follower