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![]() WTS: Michael's Machines MM23e/21e. 5.56 Nato & 7.62 x 51 Guns International #: 103197287 Seller's Inventory #: Category: Heckler & Koch Rifles - Military Rifles - US Seller's Information When emailing or calling sellers direct, please mention that you saw their listing on GunsInternational.com ![]() Seller: Maggitas101 Member Since: 7/25/25 First Name: Johnny Last Name: Maggitas State: Georgia Zip: 31792 Country: United States Phone: (229) 224-7574 Number of Active Listings: 1 Total Number of Listings: 1 Seller: Private Seller Return Policy: 3 day inspection and return policy on used guns. Payment Types Accepted: Wire Transfer, Cashier's check, Guntab. About Us: Just a gun guy. Description: Hi i am looking to sell my Michael's Machines MM21e/23e. it is a dual caliber gun. I have the feed mech, bolt carrier and barrel for each caliber. Note i have an extra 5.56 Nato barrel. The gun comes with a Boyt case and i have upgraded the rear site to a genuine HK 1200 Meter sight. I also have a spare recoil rod assembly included in the sale. The gun has been test fired only!! If you like you can pick up in person and i will throw in 223 links, 308 links and a linking machine. I am asking 19,999.99 plus shipping. Price: $19,999.99 Rifle Caliber: 5.56x45mm NATO, 7.62x51mm NATO |