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ThePartsStash posted a topic in Semi-Auto Market BoardBushmaster ACR Pistol with Remington Defense components. $8900.00 (including shipping) Upper Receiver: Special ordered from Remington as a painted but unassembled receiver, as ACR pistols were not available in 2018. BFI, Ilion, NY markings. Internal Guide Rails: Remington Defense 4 piece rails. Rear bolt guide rails are steel with lightning cuts, forward actuator rails are hard anodized aluminum. Phosphate coated screws (Yes, even the screws were different on Rem. Def. ACR's.) Actuator: Remington Defense lightweight aluminum actuator and folding charging handle. Charging handle latch plates installed on both sides for LH / RH operation. Right side charging handle also included. Bolt Carrier Assembly: Remington Defense bolt carrier with internal buffer weights. Remington Defense 5.56 Nickel Boron coated bolt assembly (bolt, extractor, ejector, extractor pivot pin). Remington Defense Action Spring Assembly (aluminum guide rod and rear support). Trunnion: Remington Defense, made from aluminum instead of steel to reduce weight. It does not utilize the BFI quick change barrel. Barrel: Remington Defense 10.5" 5.56 NATO, FNC (nitrocarburized), 1-7 twist, hammer forged. Barrel is NOT marked BFI. Gas regulator with 'U' and 'S' markings. AAC 51T Flash Suppressor Handguard: Remington Defense aluminum with ACR PDW hand stop. Lower Receiver: Remington Defense lightweight magnesium lower with upgraded internal components: Nickel Boron coated bolt stop, extended bolt stop button, lightened magazine catch, stronger magazine catch spring, semi-auto ambidextrous selector with removable paddles, removable pistol grip, lightweight trigger guard. Trigger: Geissele 2-stage Rear Adapter / Endplate: Remington Defense side folding with AR receiver extension tube (1 of 3 known to exist). Currently equipped with an SB Tactical SBA3 brace. Remington Defense QD sling socket replaces the footman's loop. Sights: Magpul M-BUS (Tan ACR specific color) This is what the BFI ACR could have been. Personal sale. Must ship to an FFL. USPS MO, Check (held until cleared), and some online payment types accepted. Message for additional details.