ButcherBill Posted Tuesday at 18:26 Share Posted Tuesday at 18:26 (edited) 35 minutes ago, MrTea said: It is. I had to drop the spring down to a M110 to get it inside the limits. No idea what it came stock with. The hop unit is a bit strange, it's like a M4 and P90 hop put together and the inner barrel has a fair bit of movement even when assembled so I pushed an O-ring into the space between the hop unit and the inner barrel to hold it a bit more secure. I had to glue the nub to the hop arm as it kept getting stuck in place when winding the hop off. Gearbox looks to be a standard V2 but without a quick change spring and all the internals appear pretty much standard except the nozzle which is a long brass thing. Really should have measured it. Not sure what's going on with the rails on this - I had to really force the angled grip on and my KAC style rail covers just will not fit at all - it's like the rails are ever so slightly wider than all my other RIFs. The mock charging handle is a bit loose because the spring is about 3-5mm too short so it has some play. I have no idea how to take that apart so it's staying as is for now. It was shooting hot for me but I'd only ever chrono'd it so assumed it was a tight spring due to zero use. Hope you're happy with it, looks great with the changes, did you empty the Pmag for the battery or reroute the wiring? Think I'd only ever fitted an RDS to the top rail so can't comment on the rest of them. I remember watching Forgotten weapons vids about his AR57 & apparently the RS charging handle was dodgy... I should have charged more for the realism 😉 Edited Tuesday at 18:29 by ButcherBill Link to comment Share on other sites More sharing options...
MrTea Posted Tuesday at 18:30 Share Posted Tuesday at 18:30 1 minute ago, ButcherBill said: It was shooting hot for me but I'd only ever chrono'd it so assumed it was a tight spring due to zero use. Hope you're happy with it, looks great with the changes, did you empty the Pmag for the battery or reroute the wiring? Think I'd only ever fitted an RDS to the top rail so can't comment on the rest. Yeah was shooting at 400fps when I first tested it. The mag was just a spare high cap I had laying around so I pulled the internals out and superglued the pin back in to give some rigidity to the top of the mag. Wiring is still into the mag as it's just the better place for it tbh. If I wanted to make the profile smaller, I could get a short mag and put a peq box size battery in there. ButcherBill 1 Link to comment Share on other sites More sharing options...
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