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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

MPN: AR57-ULT12  |  UPC: 051497388553

PRODUCT DESCRIPTION

AR57 12" Complete ULT M-LOK Upper, AR57 Mfg, Factory new. Comes with a 12" lightweight barrel with M-LOK rails.  This AR57 Upper Receiver Assembly converts any AR-15 lower to a pistol capable of shooting 5.7x28 ammunition. The unique upper design loads from the top and ejects downward through the AR-15 mag well. The new generation upper has a stronger, lighter, and more streamlined rail; finished with a beautiful ultra-smooth melonite black coating.  Comes with one 50-round magazine. 

Convert your AR-15 type pistol to shoot the same 5.7x28 ammo as the legendary FN P-90 PDW!

This AR57 Upper is constructed with a steel barrel, muzzle brake, bolt carrier group, buffer, and screws, all built into an alloy monobloc receiver. In other words, it is ready to drop in and push pin.  It is also built as solid as a tank. A single block of Aircraft Grade 7075 T6 aluminum, referred to as Kryptonite Monobloc and rated at 83000 PSI strength, is used for the receiver and its component rails. Precision milled to within .002 tolerance, this upper is chambered in 5.7 x 28 mm. 

SPECS
Additional No
SKU ACC-AR57-ULT-12-UPPER
Country of Manufacture United States
License Requirement None
Manufacturer AR57
Mfg. Part Number AR57-ULT12
UPC 051497388553
Caliber/Gauge 5.7x28
Action No
Barrel Length 12"
Barrel Twist 1:9
Barrel Bore Type Fully Rifled
Barrel Finish No
Barrel Fluting No
Barrel Profile No
Mount Type No
Beam Color No
Firearm Fit AR-15
Threaded Barrel Yes
Condition New
Free Shipping No
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