Product Description The XTECH Tactical Speedmag is a 30-round AR-15 magazine designed to dramatically speed up reload preparation. Its integrated collar can be pulled down while inserting ammunition, allowing multiple rounds to drop in quickly with less effort than traditional loading. Built to work in Mil-Spec AR-15 lower receivers, it accepts common AR-compatible cartridges including .223 Remington, 5.56 NATO, and .300 AAC Blackout. Product Highlights Integrated pull-down collar helps load several rounds at a time for faster magazine filling Fits Mil-Spec AR-15 lower receivers for broad compatibility 30-round capacity for reliable training, range, and duty use Durable injection-molded polymer construction in a black finish Accepts AR-magazine-compatible ammunition such as .223 Remington, 5.56 NATO, and .300 AAC Blackout Specs Brand Name: XTECH TACITCAL Manufacturer Part Number: XTT110BLKSPEEDMAG UPC: 856822007044 Capacity: 30-round Compatibility: Mil-Spec AR-15 lower receivers Cartridge Compatibility: .223 Remington / 5.56 NATO (also accepts .300 AAC Blackout as noted by manufacturer text) Material: Injection-molded polymer Color/Finish: Black Quantity: 1 Listed Weight: 0.223 lb Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.