Dye i4 GSR Pro Replacement Strap Elbow & Knee Pads while a low FPS spring

while a low FPS spring is included for quick field adjustment through the buffer tube quick change spring system

combining the shorter profile of the GLOCK 19 slide with the full size frame of the GLOCK 17

Thread Direction: 14mm negative / counter-clockwise

Detachable rear sight

Comes without a barrel

Dye i4 GSR Pro Replacement Strap Elbow & Knee Pads while a low FPS springThe GSR Pro Strap is a quantum leap in strap design and security. The GSR gear lock system gives you precise tension control for a secure, comfortable fit. The extra wide head pad grips the back of your head, and distributes the force over a large area, ensuring ultimate grip and maximum comfort. Simply turn the dial and ratchet down your i4 or i4Pro to a precision fit. The GSR is a revolutionary step in goggle strap technology providing the ultimate