Frag Out! Magazine
Issue link: https://fragout.uberflip.com/i/693549
FIREARMS the bCg The bolt carrier group (bolt carrier and bolt) design is another PWS differences. What caught my attention at the first glance was that the bolt, bolt carrier and pis- ton (both parts) were finished with a nickel-boron-teflon layer. This might seem a vain embellishment, but you'll sure find out the difference after first cleaning. Sure, the gas-piston system is inherently cleaner that the DI, but it still has to be cleaned once in a while. And cleaning of the PWS moving parts thanks to the finish is a breeze: just wipe, and that's it. Pure magic. Additionally, the nick- el-boron-teflon coating reduces the friction between the BCG and upper receiver walls. How's that for a mere embellishment? The friction is reduced not only by the coating, but by careful design, limiting the contact area between the parts and the receiver. The rear part of the lower has been extended, which makes it a bit heavier – which reduces the recoil and allows the parts to reciprocate more fluently. gAs regulAtor PWS rifles are also fitted with a 4-position as regula- tor. Each position governs which amount of gas is bled out of the barrel to propel the piston: one may open the valve if the bolt carrier is not sufficiently blown back, or conversely – shut it, when the recoil is too powerful. The gas regulator is set or stripped with a small tool, in- cluded with the rifle – but it can be replaced with a tip of the .223 round. In those countries, where suppressors are civilian-legal, the gas regulator would be even more useful. Me – I mostly just keep my paws off it. It was set to an optimum position for shooting with my prevalent ammunition choice (Barnaul) and I plan to touch it again, when I change the ammo – which is fat chance, so far.