Monk Customs Outer Barrel 'Helix' had the same as our renowned

the same as our renowned Trigger Spring

Fits waist sizes 26"- 45" (EU 66 - 114

and charging handle are 3D printed using PA12-CF

AAP01 Aluminum 7075 Enhanced Trigger Housing

Built with a robust metal alloy construction

Monk Customs Outer Barrel 'Helix' had the same as our renownedThis is Monk's latest addition to the world of M4 Outer Barrels. The unique and stylish twisted helix design stands out beautifully, especially when used in combination with a Monk style skeletonized hand guard! The clever O ring addition makes sure the inner barrel is always positioned in the center of the Helix Outer Barrel and sits tight!