Each motor casing comes with snap-rings, thrust washer and graphite nozzle.

It does not include the forward bulkhead

The 10 and 12 grain motors MUST use the slow red propellant!
The 38mm casings DO NOT fit slimline adapters!

2 grain 220 NS "H" 7" motor
in stock


4 grain 450 NS "I" 11" motor
in stock


6 grain 680 NS "J" 15" motor
in stock


8 grain 890 NS "J" 19" motor
in stock


10 grain 1100 NS "J" 23" motor
in stock


12 grain 1330 NS "K" 27" motor
in stock


38mm Parts and Miscellaneous items

Silicone "O"-rings (2)
in stock


Thrust washer
in stock


48" phenolic liner
with paper casting liner (1 of each)
In stock


High Quality Graphite Nozzle
(good for 15 to 20 firings
with most propellants)
Specify casing size or nozzle throat
in stock


Internal snap-rings (set of 2)
in stock


External snap-ring
in stock


Aluminum Propellant Casting Base
in stock


Plugged Forward bulkhead
in stock


Packing Tool Set
special order


The packing tool set consists of three drilled aluminum casting bases with matching 1/2" diameter 14" long teflon mandrels, an aluminum handled teflon ram, and a mandrel extraction wrench. This makes packing a much faster and easier process than using the packing tool included with the class. It also eliminates 95% of the propellant that is normally drilled out and wasted.

38mm specifications:
AL tube 38mm OD, wall 0.083"
Outer liner OD 1.32"
Casting liner ID 1.283"