HellJumper Posted August 5, 2017 Share Posted August 5, 2017 Hi, I've recently bought a KWA MP7A1 and it's shooting slightly hot for my field (380fps, my fields limit is 350), so I'm looking at ways to lower my fps. I'm open to most ideas and not afraid to do some tech. Link to comment Share on other sites More sharing options...
Supporters Prisce Posted August 5, 2017 Supporters Share Posted August 5, 2017 Which gas are you using? Link to comment Share on other sites More sharing options...
HellJumper Posted August 5, 2017 Author Share Posted August 5, 2017 Green gas Link to comment Share on other sites More sharing options...
Supporters Prisce Posted August 5, 2017 Supporters Share Posted August 5, 2017 I think, don't quote me on this, Abbey 144a gas is slightly weaker so may drop your FPS just enough. Other than that, I'm not very clued up on the internals of gas guns, think this may be one for the Proff. @proffrink? Link to comment Share on other sites More sharing options...
Aunty Pasty Posted August 6, 2017 Share Posted August 6, 2017 The 144A gas should be enough to reduce your fps and is the easiest option. Alternatively you can fit an adjustable gas nozzle to lower the fps. Link to comment Share on other sites More sharing options...
HellJumper Posted August 6, 2017 Author Share Posted August 6, 2017 I was thinking about buying a MP7 npas valve but I'll try the 144a gas first. Link to comment Share on other sites More sharing options...
alex90 Posted August 7, 2017 Share Posted August 7, 2017 I tried running 144a in my kwa mp9 and wouldn't cycle the gun very well and kept locking the bolt up and venting before I converted to HPA I ran these http://www.ebay.co.uk/itm/Airsoft-CNC-Machined-Power-Down-Valve-Set-For-KSC-KWA-S7-NS2-MP9-MP7-/141409941879?hash=item20ecb07977:g:rCAAAOSwGvhUGNbn bit of a pain to fit but worked a treat plus you get two to try ones about 20fps drop and the other is about 50 Link to comment Share on other sites More sharing options...
alex90 Posted August 7, 2017 Share Posted August 7, 2017 and I was using a mix of aim top gas and WE neprol gas Link to comment Share on other sites More sharing options...
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