CTM CNC Nozzle Block for AAP-01

The nozzle block sits at the back of the blowback unit, guiding the nozzle and holding the bolt housing together. It is not a part anyone shows off, and it is a part that takes the full shock of every shot.

CTM machine this one from 6061 aluminium at 55.3 g, which is a substantially heavier and more solid part than the moulded block it replaces. The mass is the point: it is what stops the housing flexing in the receiver.

Eight finishes are listed here, so it can be matched to the rest of a build even though almost nobody will ever see it. CTM make a ninth, gold, which we do not stock.

Specifications

Good to know before you buy

Published material claims for this part contradict each other, giving 6061 aluminium in one place and 304 stainless in another. CTM publish it as 6061 aluminium at 55.3 g and that is what we have listed.

At 55.3 g this is noticeably heavier than the part it replaces, and all of that weight sits at the rear of the blowback unit. On a build you have already lightened, that is worth knowing before you fit it.

This is a strength part, not a speed part. Pair it with a light bolt if a faster cycle is what you are after.

Frequently asked questions

Is it aluminium or stainless?
Aluminium. CTM publish it as 6061 aluminium at 55.3 g. A 304 stainless claim appears elsewhere, which is wrong.

What does the nozzle block do?
It guides the nozzle at the rear of the blowback unit and retains the bolt housing.

Does it have a pressure rating?
CTM do not publish one for this part. A figure is quoted elsewhere, but the same specification is demonstrably wrong on other points, so we are not repeating it.

What finishes are there?
Eight here: black, blue, champagne gold, green, grey, red, silver and violet. Several are not available to us at the moment and show as unavailable until they return. CTM also make a gold, which we cannot get at all.

How much does it weigh?
55.3 g.