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Cross Machine Tool UPUR-1A Big Bore Billet AR-15 Upper Receiver
Lowest Listed Price
$198.95
MSRP
$198.95
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Updated
Aug 26, 2026
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Specifications
Brand
MPN
UPUR-1A
Description
Cross Machine Tool UPUR-1A Big Bore Billet AR-15 Upper ReceiverLooking for something to change up the standard AR-15 formula? This AR-15 Upper Receiver is compatible with a wide range of parts, so you can build your dream rifle.Features:Machined from billet 7075-T6 aluminumHardcoat anodizedEngraved T-marks and 1913 picatinny railIncreased wall thicknessPrecision cut carrier bore diameter.458 SOCOM sized ejection portNo forward assist or dust coverM4 feed rampsCompatible with Mil-Spec lowers and partsCross Machine Tool Co., utilizing the latest machining technologies, offers high quality products that you'll be excited to own. Cross Machine Tool is a veteran owned business that takes pride in manufacturing products you will own. CMT products exceed military standards, so you can build the best AR style rifle possible.
