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achieving around 250–280 FPS
The only thing you need to do is install the cylinder into the receiver
Reversible Dual Picatinny Hinge
or remove it for finer adjustment—the choice is yours
" single shot/3-round burst/full-auto firing modes
Guren 03-1 GBB Inner Barrel - 6.03mm - 112.5mm ak74 achieving around 250–280 FPSGuren barrels are made of precise carbon steel & processed with HV500 coating. This plating reinforced the hardness of the surface. Its better than stainless steel (from HV200 to 400). Hop window length : 5. 5mm Inner Diameter : 6. 03mm Outer Diameter : 8. 55mm
US$ 134.97
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