Ok, so i've always wanted to build a DMR, but I couldn't decide what platform to use. I wanted to use a m4 as my base, but i'd rather keep my m4 for use as a field gun. So, I chose my mp5 because I wanted something different, and it barely gets used. Where I play at, DMR's are allowed to shoot up to 550 fps, but I would like to shoot for 500 fps. Currently, it has 7mm reinforced gears and a few external mods. As for the motor, it was the same as my friends ca-25 has (unaware of brand-will check later) so it should be able to pull back a 500fps spring (it's a high torque motor I believe). This is the first time, for me, working on a gearbox. But I've done my research and feel pretty confident.
The first modifications I would like to do is shim my gears, and the semi auto only modification. Next, I was thinking the hop-up, bucking, and barrel. I'm thinking of going 6.03mm tightbore, at 509mm in length. What would you recommend for a bucking? As for the hop-up, I'm not sure on compatibility, but I believe G@G makes one. For external modifications, I was thinking of using a donor m16 for parts to make a barrel extension. I'm going to try and put parts in in bundles, due to the fact mp5's are kind of a pain to reassemble. Any other suggestions would be much appreciated on internal modifications. Thanks- Austin
The first modifications I would like to do is shim my gears, and the semi auto only modification. Next, I was thinking the hop-up, bucking, and barrel. I'm thinking of going 6.03mm tightbore, at 509mm in length. What would you recommend for a bucking? As for the hop-up, I'm not sure on compatibility, but I believe G@G makes one. For external modifications, I was thinking of using a donor m16 for parts to make a barrel extension. I'm going to try and put parts in in bundles, due to the fact mp5's are kind of a pain to reassemble. Any other suggestions would be much appreciated on internal modifications. Thanks- Austin