WM MWS GBBR Trigger Box Sainless Steel Gel Blaster, MWS Parts gbbr spring An excellent high quality piston

An excellent high quality piston head for upgrades

for quick and easy loading look no further

by the wizards at WM (Western Manufacturing)

This kit includes 1x Smizz follower

5mm Outer Diameter

WM MWS GBBR Trigger Box Sainless Steel Gel Blaster, MWS Parts gbbr spring An excellent high quality pistonDESCRIPTION: The WM Complete Trigger Box is designed for MWS M4 AR 15 series gas rifles. Crafted from CNC machined 303 Stainless Steel, this housing offers exceptional durability. Its internal components are made from 303 stainless steel, ensuring reliable operation. The trigger box also includes a steel bolt catch for added strength. Installation is made easy with a drop in fit, though some technical skills may be needed. Upgrade your rifle with this