(M) HECKLER & KOCH MODEL MR556A1 COMPETITION SEMI-AUTOMATIC RIFLE.Dan Morphy Auctions4.3(1.4k)US$800(2 bids)May 13, 2026
Aero Precision X15 Semi-Automatic Rifle 5.56 NATO with 16 Inch BarrelBrand Used Works4.7(711)US$10(1 bid)May 02, 2026
Matrix Aerospace Corp. M556-SC Semi-Automatic Rifle 5.56x45mm NATOBrand Used Works4.7(711)US$10(1 bid)May 02, 2026
450 BUSHMASTER PALMETTO STATE ARMORY PA-15 RIFLEPoulin Antiques & Auctions4.5(294)US$300(1 bid)Apr 17, 2026
