Professional PCP Tuner/Smith

Dave Slade at Airgunwerks.

Unless your Ultra is the XL model the Huma reg just screws on to your air tube.

Hi 

Nitten should be able to help you 

He was the US dealer for Huma before AOA took over. Here’s a link to his site 

http://precisionpneumaticproducts.com/

Hope this helps 

Dave 

When I put a reg in my Ultra there was more to it than just slapping a reg in it. Had to drill out the anti-tamper plug to gain access to the hammer spring. Larger transfer port also required. The stock hammer spring will work but you have to back it way off. Then a lot of shooting over the chrono to find its happy place.

Thanks Dave.

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You’re welcome 

Glad I could help.

Dave 

A.Z.