The recoil spring guide can be used to compress the recoil spring with the tip end of the guide pulled back to compress the spring and moving it from the recess in the operating slide and removing it.
The operating slide should be pulled to the rear slowly while exerting pressure to move the slide to the right.
The action bar or operating slide may be disassembled with a punch with the slide lock driven out from top to bottom.
Conversion to selective-fire capability required changes to the sear, hammer, operating slide, trigger housing (beefed-up to support the weight of the 30-round magazine), and buttstock plus the addition of a selector lever and spring, a sear trip, spring and plunger, and an actuating lever.
The operating slide was altered in configuration to improve empty case ejection.
The steel operating slide is U-shaped with tenons on the inside top edges of the "U" that slide in grooves machined on each side of the forged barrel assembly.
The recoil spring bears at its front end against the rear face of the operating slide and at its rear in a tunnel drilled in the receiver to accept it.