Upgrade kit for your fatboy muzzle brake. Comes with two air strippers for each size.
Note* Not compatible with the gold limited edition muzzle brakes.
MGTaylor on Jun 12, 2020
I was a little skeptic till it arrived. This is truly a work of art. The craftsmanship is by far the best I have ever seen. And the performance far exceeded my expectations. If you have any doubt at all let me tell you just do it you will not be disappointed. I am now a fan for life and so will be anyone that I talk to. Thank you Donny for this Outstanding work of Art.
Justin on May 03, 2020
Exceptional quality. The Sumo really quiets the Zbroia Kozak(FC550 .22 cal). Improved accuracy at 10 - 100 yards. Couldn't be happier. As long as I own airguns, I will always have a DonnyFL!
Steven Asprelli on Apr 09, 2020
With all the products and companies out there DONNY FL is by far the best, his quality control is exquisite and this this EMPEROR V3 with extender bypasses what I thought it was, I will be a repeat customer 4 life. This moderator is perfect if you want to use your Bigbore sound down to a minimum. and I mean MINIMUM. On my HATSAN 45 caliper bully sounded like a 25 cal Rimfire, now all I hear is the wood target being destroyed. A+++++++++ service , super fast shipping and super high quality makes for a great combo THANKS DONNy.