Air Machinegun Forum

General Air Machinegun Discussion Category => Drozd and Blackbird Discussion => Topic started by: East Milford on April 09, 2017, 08:48:19 PM

Title: 1060 FPS
Post by: East Milford on April 09, 2017, 08:48:19 PM

Well i cronographed the BB after doing the "sealed breach mod," this involved welding a breach nut to the magazine to seal the air gap between the mag face and breach. The barrel now threads right to the bb exit hole. I cut the breach nut down to just a few threads so it slides into frame for easy removal . Before this mod i was getting 870ish fps on this particular build. So today i tested it out on a1500psi output Ninja reg.
The results were good. Some shots as high as 1070.

Title: Re: 1060 FPS
Post by: Westwind on April 19, 2017, 05:09:48 PM

Very cool you are a talented guy. That eliminates the need for
a latch plate with that mod. I won't be trying that one any time
Soon I'm not that good at welding.

Title: Re: 1060 FPS
Post by: East Milford on April 23, 2017, 06:27:07 PM

WW, i have extra mag heads with the welded breach nut on them. If you want to give it a go, let me know and i'll send you one.
Correct, mag latch and alignment mods are no longer as imperative. I do still like to use a magnet on a set screw to keep the BBs from rolling out of the barrel.