Cannonfodder Posted October 9 Share Posted October 9 So I've decided to dip my toes into HPA by converting my sawn off. From looking on google I need an adapter for the valve like this https://highpressureairsoft.co.uk/products/jag-arms-scatter-gun-secutor?variant=48820107542852 Obviously I also need a tank, line and regulator so I'm thinking this package from high pressure airsoft. https://highpressureairsoft.co.uk/collections/package-deals/products/26ci-tank-line-and-regulator-package-bundle Is there anything I'm missing, or am I good with these? Thanks, all help is appreciated Link to comment Share on other sites More sharing options...
ButcherBill Posted October 9 Share Posted October 9 Cannonfodder 1 Link to comment Share on other sites More sharing options...
Cannonfodder Posted October 9 Author Share Posted October 9 I'm getting fed up with only getting a couple of shells worth of shots from the tiny gas tank before needing a refill. Being pump action I don't think I'll be getting wanker gun rof, maybe if I was 14 again😉 Link to comment Share on other sites More sharing options...
The_Lord_Poncho Posted October 10 Share Posted October 10 I'm watching this with interest - I have a full stock GE 870 shotgun, and the performance is distinctly anaemic, with the useable range being probably 20m max.... HPA tapping it might just give it a new lease of life. Link to comment Share on other sites More sharing options...
sjhirst Posted October 14 Share Posted October 14 Yep. thats what you need. Be aware, that depending on the valve location, you may need to drill a larger hole for the hpa adapter to fit. Cannonfodder and The_Lord_Poncho 1 1 Link to comment Share on other sites More sharing options...
The_Lord_Poncho Posted October 14 Share Posted October 14 (edited) 1 hour ago, sjhirst said: Yep. thats what you need. Be aware, that depending on the valve location, you may need to drill a larger hole for the hpa adapter to fit. I'll give it a go. For me, the fill valve is on the underside of the buffer tube, so I think a fairly easy fit. @Cannonfodder have you taken the plunge yet? Edited October 14 by The_Lord_Poncho Link to comment Share on other sites More sharing options...
Cannonfodder Posted October 14 Author Share Posted October 14 4 hours ago, sjhirst said: Yep. thats what you need. Be aware, that depending on the valve location, you may need to drill a larger hole for the hpa adapter to fit. Thanks. Mine is this one with the valve in the end of the grip. If it's just a case of drilling a larger hole that won't be a problem @The_Lord_Poncho not yet, I've had to put it on hold till next month as I've had some stuff come up but I will update here when it gets done Link to comment Share on other sites More sharing options...
The_Lord_Poncho Posted November 16 Share Posted November 16 OK, I've added an hpa valve to my GE 870- a bit of testing in the garden, and it's spot on! Finally the shotgun is a usable item. It was chronoing at circa 1j on about 100PSI, with a usable range of about 45m on. 25s. Mine is the version with the buffer tube and m4 LE stock, so the only downside is that the stock doesn't now collapse all the way as the valve pokes out the bottom of the buffer tube, but I've cut the stock such that it can collapse all but the last cm or so. Definitely a worthwhile upgrade in my view if you already have the Hpa tank/reg/line.... Cannonfodder 1 Link to comment Share on other sites More sharing options...
Cannonfodder Posted November 16 Author Share Posted November 16 My parts arrived today so now I just need to get the tank filled before fitting it all together. 2 hours ago, The_Lord_Poncho said: It was chronoing at circa 1j on about 100PSI, Thanks, that gives me an idea of where to start when setting the power level Link to comment Share on other sites More sharing options...
The_Lord_Poncho Posted November 17 Share Posted November 17 18 hours ago, Cannonfodder said: My parts arrived today so now I just need to get the tank filled before fitting it all together. Thanks, that gives me an idea of where to start when setting the power level It's a bit of a slippery slope now- soon you will be investing in Airtac magazine adapters for your Glock/AAP/MK23.... Link to comment Share on other sites More sharing options...
Cannonfodder Posted November 17 Author Share Posted November 17 If that happens then you have my permission to give me a slap The_Lord_Poncho 1 Link to comment Share on other sites More sharing options...
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