This multi-caliber magazine from Wilson Combat is a perfect companion for your AR-15.Whether it's 223/5.56 300 Blackout or 300 HAM'R this magazine will feed reliably and features a non-slip polymer tube and an anti-tilt follower.Compatible with all AR-platform rifles these mags are not only versatile but dependable as well.Wilson Combat AR15 300 Blackout/223/5.56 MagazinePolymer Construction30 Round CapacityCompatible with 223/5.56 300 Blackout and 300 HAM'R CalibersWith a fiber-reinforced polymer build and a weight of only 5.5 ounces you can expect a combination of maneuverability and durability.Order your AR-15 magazines online today!Searching for .223/5.56 ammunition? Score big savings and fast shipping when you shop our online selection of cheap 223/5.56 ammo from the top brands you know and trust.Save time and money when you purchase 300 Blackout ammo at Ammunition Depot! Our online inventory of cheap ammo for sale is available from the top brands you know and trust.