WE SVD GBB Steel Bolt Carrier V2

2. Install the nozzle return spring cap at the rear of your OEM nozzle return spring (if your nozzle return spring is intact, you don't have to change to the new spring in our package), and use vise to fix the cap, with the help of punch tool, punch the small elastic cylindrical pin into the hole, so that the spring will be fixed in place. If it's too difficult, drill it wider to 2.5mm, this will ease the installation, but then you need to apply some superglue on it. Alternatively you can insert a M2x6 grub screw here, then superglue it on both sides. (we included some smaller pins in the later batch, which is directly attached on the outer box)

3. Install one o-ring at the rear of the nozzle return spring cap

4. Insert nozzle in the bolt carrier, ensure that at the rear the nozzle return spring cap is fully aligned in place with the rear hole of bolt carrier

5. Install the countersunk M2.5x8 screw works as nozzle stopper here

6. Apply the other o-ring on the M3x5 countersunk screw, then install it to the nozzle return spring screw. Done.

File the back side of the nozzle guide wing ca. 1mm to fit the radius of the bolt carrier