NIB Sig Sauer M400 Enhanced OD green AR-15 with NIB OD green x-products x-15 50rd drum magazine (formally xs-products). These look great together and make quite a statement. Can meet either in Hays or the Greater KC area for exchange. Manufacturer's information: X-15, the most compact and versatile 50 round magazine ever produced for the AR-15 in 5.56x45/.223 and 300 AAC Blackout full length. Built entirely of 6061 billet aluminum, there are zero plastic parts. The fully enclosed magazine will operate in the most demanding of operations. The compact design is based on our proven coil magazine technology, which allows side by side staging of ammo in a single stack. The streamlined design allows for no separation of ammunition during function and prevents malfunction. Based on our patent pending design that allows for unlimited spring loads for high rate of fire weapons, it will easily operate up to 1100 rounds per minute. The profile is shorter than a standard 30 round magazine and 4-5 inches shorter than a surefire quad stack magazine. User friendly ergonomics and the ability to use your sling makes this the choice magazine for 3 gun competitors. Coated in Cerakote for friction reduction and proven reliability without using lubrication, and given a liftime warranty. Manufactured in the USA, fit’s most M16/AR-15 rifles, Bushmaster ACR, SCAR 16 and Stanang Rifles with improved M4 feed ramps. M400 Enhanced OD Green – Features a 16" chrome-lined and phosphate-coated barrel with 1:7-twist rifling for outstanding accuracy. The muzzle is outfitted with a M16A2-type flash suppressor and a mil-spec muzzle brake. Maximum durability and corrosion resistance are afforded by a 7075-T6 aircraft-grade aluminum forged lower receiver. The semiautomatic action uses proven direct-impingement gas operating system with a rotating locking bolt. Olive drab polymer Magpul MOE forend, grip and collapsible stock. Comes with a Magpul 30-round PMAG® magazine and a rail-mounted, adjustable rear battle sight in place of a carry handle.