 
Tuning the Gas Gun
The Ultimate and Super Gas are fixed to the frame and what occurs to the rest
of the gun during firing does not effect the barrels performance.
With friction removed in key areas with the gas barrel, the slide has the opportunity
to move at a greater speed. Speed is one of the features of the Gas Gun.
Speed is a good thing, but must be managed. When NCG was testing the
Gas Guns we soon learned the speed had to be managed.
There were several symptoms appeared:
- Failure to feed:
- Nose of bullet jammed under or
into the hood
- Bullet jumped out of the
magazine
- Reason:
- Slide moving too fast and
hitting buffer bushing too hard and knocking
round forward in the magazine
- Solution:
- Increase the recoil spring
poundage and a tuned magazine with an 11 pound spring
Poor quality magazines and a weak recoil spring are 95% of the reason the
1911 fails to feed.
- 45 ACP Defense loads 200 grain 950-1000 FPS 18-20 pound recoil spring
- 45 ACP Ball loads 230 grain 800-900 FPS 18-20 pound recoil spring
- 45 ACP Super loads 230 grain 1300 FPS 22-24 pound recoil spring
Do not worry about how hard at first it is to pull the slide back.
After a couple of magazines shot through the gas gun the spring will take a set
and the 22-24 pound recoil spring will feel like an 18 pound spring.
One of the features of the gas gun is you can maintain the reliability by
changing the recoil spring for any load. Another feature is that the
extractor can be run loose with the gas gun being a blow back design. Less
dependent, less retuning and less breakage.
No more waiting for expensive reliability package from your gun smith.
It is built into the NCG Gas Gun. No reason to shoot an unreliable 1911
whatever barrel you choose to shoot.
The NCG's technical staff only wants you shooting the best!
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