Special Interest Arms - Enfield Conversions
Special Interest Arms
Special Interest Arms - Enfield Conversions

Enfield .45 Carbine and kits.
Due to unrelenting demand I made am another run of the the Enfield .45 conversion kits.
Selling kits or adapters ONLY at this time! 
Late May to early June delivery, email to be placed on the pre-sale list. 
If I do begin assembling kits again prices will rise to industry standard for the tyoe of work done.

No build service available from me at this time, maybe late in the year?
I do not have time right now to search for decent actions at reasonable prices.
Small critical parts have become more difficult for me to obtain.
Kits are the same price but I will not be supplying the magazine, easy for you to  order from Brownells.


I am leaving this page up mostly as a reference archive.
A custom Enfield .45 conversion using our improved adapter, with threaded barrel for use with a suppressor.
A custom Enfield .45 conversion using our improved adapter, with a threaded barrel for use with a suppressor

Enfield .45 "Tanker" conversion.
Enfieldd "Tanker" .45 conversion.

This is a standard .45 kit. Barrel, ejector assembly, magazine and magazine adapter.
This is a standard .45 kit. Barrel, ejector assembly, and magazine adapter. 

Our kit is clearly superior to any previous Enfield .45acp conversion set.
We use McGowen Precision® premium barrels and our improved design magazine adapter.

Our regular kit incorporates a spring loaded ejector stud, our design ejects spent brass reliably.  
Our .45 magazine adapter holds the magazine exactly in it's proper location. Note the location of our magazine release lever, no more cutting your stock or trigger guard!
Barrel length 16.5". 

Still available for 2017

Optional barrel nut to accept AR-15 type free-float or rail hand guards.
$25.00 clearance sale.

Our .45 conversion build manual.


We have perfected an improved ejection system which is not visible from the outside for all .45 kits.

A little too complex for home builders as it requries TIG welding, we can add it to any kit for $50.00.
We need your old bolt head sent to us with your order for this upgrade.


Special Interest Arms