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5.7x28 AR-15 AR57

AR57 is a manufacturer recognized for its innovative approach to firearm design, offering a unique platform that blends AR-15 ergonomics with the performance of the 5.7×28mm cartridge. The AR57 system is available as a complete firearm or as an upper receiver that can be paired with standard AR-15 lowers, providing flexibility for enthusiasts and professionals alike. Notably, the AR57 utilizes a top-mounted FN P90 magazine, enabling a 50-round capacity and downward ejection through the magazine well, which enhances reliability and ease of brass collection. The rifle operates on a direct blowback system, differing from the traditional AR-15 gas impingement mechanism, and is engineered for accuracy and versatility in a lightweight package. To explore the AR57 lineup, including the latest rifle models for sale, browse our selection and experience advanced performance and design.

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AR57 16" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready

AR57 16" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready
Out of Stock
AR57 12" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready

AR57 12" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready
Out of Stock
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