Top Dead Center hopup mod for Tokyo Marui MK23 (includes 2 M4 grub screws. One is short for lighter BBs, and the other is longer to allow hopping heavier BBs)
Sturdy snap to barrel design can easily over-hop .46g bbs with the longer grub screw included in the package.
Designed by DaBlueBunny Designs
Top Dead Center hopup mod for Tokyo Marui MK23 (includes 2 M4 grub screws. One is short for lighter BBs, and the other is longer to allow hopping heavier BBs)
Sturdy snap to barrel design can easily over-hop .46g bbs with the longer grub screw included in the package.
Designed by DaBlueBunny Designs
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