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This 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!
These outer barrels are 6 inches in length.
* These will fit the Article one with the Red Engines, not with the all Black
UK Based
We're based in the UK so no lengthy waits for your parts to arrive at your door
Customer service
5 Star customer service, were always a message away and no waiting 24 hours for a reply
Fast Shipping
We will always dispatch your order on the same day.* We're known for dispatching fast!
Secure payments
We offer a wide variety of payment methods, including card payments, Paypal & Klarna
