BudsGunShop.com - Piston? 4150 barrel?
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Is this a piston rifle and what barrel does it have.
2 Answers
Primary Weapons MK116 Mod 1 Semi-Automatic .223 Wylde
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16.1" Stainless Steel Isonite Barrel with a 1:8" Twist Rate. yes it is a "piston " gun this rifle features the PWS long stroke gas piston system and has a .223 Wylde Chamber (accepts .223 Remington and 5.56mm NATO cartridges)