Worker Caliburn Blaster Metal Upgrade Kits Choose between a Pmag or

Choose between a Pmag or Lettering style in black or tan nylon material

it's easy to mount and features a thumb slide flip-up mechanism

good shell hardness

The melting point of 3d printed PLA material is relatively low

5mm for improved accuracy

Worker Caliburn Blaster Metal Upgrade Kits Choose between a Pmag orUpgrade your Worker Caliburn Blaster with our exclusive Metal Upgrade Kits. Made from high quality aluminum alloy, these parts will make your blaster sturdier and more durable. Easy to assemble, this kit includes a metal plunger rod, sear, trigger, mag release, and bolt cup. Take your blaster to the next level with these upgrades. Features: Compatible with Worker Caliburn Blaster. These worker calibrun blaster upgrade metal parts are for replacing