Bore-Up Cylinder

With large cavity to produce more air. Stainless steel construction with thin walls and smooth inside finish.

Features

• Stainless 304 material / 5 types
• Ribbed surface finish increases cylinder-surface-to-air area to thus increase heat dissipation
• Fine inner surface finish enhances piston reciprocation

Types

• 0 : M16A1/VN/A2, G3, AUG, AK47
• 2 : M4A1, XM177, SIG551, MC51