The PSS series of barrels are made for the Tokyo Marui VSR10 series of rifles

M45A1 & V10

but it does have its benefits in the form of power and efficiency

Like all the other PTS polymer products

Laylax UMAREX VFC Glock 19X "2 Way Fixed" Non-Recoiling Outer Barrel Valken The PSS series of barrelsUMAREX VFC Glock 19X "2 Way Fixed" Non Recoiling Outer Barrel 14mm CCW Threaded Muzzle Cap. Lightweight, precision machined aluminum. Made for the UMAREX VFC Glock 19X gas blowback series. The combination of set grub screws and high strength aluminum alloy outer barrel make for a highly stable shooting platform. Choose between a non threaded outer barrel cap for normal use, or a 14mm CCW threaded muzzle cap for infinite attachments. The outer barrel