Holosun HS403B CowCow This ULTIMATE® Upgrade Series Version Ultra high quality of CVAR3MEP3045U Mechbox Pro Length:310MM

This ULTIMATE® Upgrade Series Version 2 gearbox shell is cast in high-strength materials to ensure the box can handle the stresses that upgrades will exert on the box

 Modular chassis with an integrated accessory rail for lights and lasers

COMPENSATOR ATTACHES USING 14MM CCW (NEGATIVE) THREADING

- muzzle device on a 24mm CW / 14mm CCW thread

Simplistic

Holosun HS403B CowCow This ULTIMATE® Upgrade Series Version Ultra high quality of CVAR3MEP3045U Mechbox Pro Length:310MM This ULTIMATE® Upgrade Series Version 2 gearbox shell is cast in high strength materials to ensure the box can handle the stresses that upgrades will exert on the box  Modular chassis with an integrated accessory rail for lights and lasers