Ontos original skin ultimate optimized version

First, regarding air volume, the internal length has been adjusted, and a silicone pad (with a reserved groove) has been used instead to maximize every bit of air volume, so the overall length also differs from the original version

Next, a trigger guard has been added to ensure a more comfortable grip. Then, the head has also been changed to a one-piece design for easy installation. Finally, the Magpul cover can directly perfectly fit the Artisan Straight Dragon Claw (the magazine release has been specially adjusted); just push it in firmly (it's a bit hard to pull out). If you are printing the magazine, please adjust the length yourself

Finally, here is a complete list of hardware

M3 thin nut, M3*12 screw (if not flat head, 14mm length may be needed), bearing 693zz (inner diameter 3, outer diameter 8, thickness 4), ball plunger (diameter 6, length 7), M3*30 screw (needed if you use the same pull-down as me), silicone pad (outer diameter 24, inner diameter 16, thickness 3), O-rings (35*2.5 or 2.4, 13*1.9), air cylinder (outer diameter 38, inner diameter 35, length 150), spring (ensure outer diameter is 14; strongly recommend not too large, or it won't pull). Finally, the inner barrel should be at least 300mm long