Huma-Air Quick Detach Moderator (QDM) Adaptor Set 1/2 UNF
This Huma-Air QDM adaptor set allows you to attach any 1/2 UNF moderator to your 1/2 UNF threaded barrel with just a 1/3 turn.
The QDM system consists of a barrel part with a female 1/2UNF-20 thread size that screws on your barrel's 1/2 UNF threaded part and a piece with male 1/2 UNF-20 thread what will be screwed into your 1/2 UNF threaded moderator.
The moderator is locked firmly on your barrel by putting both parts into each other and twisting it for 1/3 turn.
This model is specially designed for shrouded barrels like many FX models, and the outer diameter of the hexagon barrel part is 25 mm.
We sell this item as a set (barrel part + moderator part). We will also expand our Huma-Air QDM range for other custom-size threaded barrels, moderators, and barrel diameters so that you can combine different rifles with the same moderator or moderators on the same gun.
The parts are made entirely of steel with special heat treatment for durability.