kjw m700 hop up stripped! help!!

[Jensenman]

the hop up adjuster on the scope mount rail is stripped out, could anyone help me with this?? im looking to find a replacement rail, and wondering if other rails would work or does it have to be kjw. or any other ideas??

[Styrak]

I'm not sure what you're trying to say.

Is the issue your hopup, or your scope mount?

[Jensenman]

well the hop up adjustment screw threads into the scope mount. and the threads on the adjuster screw are fine but the scope mount threads are stripped right out. i was thinking of ordering another kjw m700 scope mount but cant seem to find one on the usual sites. was also thinking of getting a real steel one and tapping it.

[Forever_kaos]

If you are willing to tap a RS one, why not just re-tap the KJW one you have now?

[Jensenman]

because re-taping would make it to large for the origional adjustment screw. at least this is what ive been told by a local.

[Wildlife]

Originally Posted by Jensenman

because re-taping would make it to large for the origional adjustment screw. at least this is what ive been told by a local.

Any idea what the specs for the original screw were? I have zero experience with the KJW M700, but I deal with stripped and damaged threads regularly at work.
Drilling & re-tapping would require changing the original adjustment screw for a larger one; not a problem if it's a normal grub/set screw (headless). You might be able to re-tap to a slightly larger SAE thread (I'm assuming KJW uses metric hardware here); e.g. reaming up a damaged M2.5 threaded hole and re-tapping for a 4-40 screw. Most small-diameter SAE threads are just slightly larger than the nearest metric size.

If all else fails, Heli-Coil sells (somewhat expensive) kits for fixing this sort of problem; it involves drilling & tapping a larger hole, then screwing in a spring-like insert with the original threading inside. A local machine shop would be a good place to ask around for these; my shop has dozens of 'em, all kinds of different threads & lengths.

[Jensenman]

yeah, i think its either the coil or a new rail. ill definitely try the coil first and let you guys know how it goes

[Rugger_can]

Originally Posted by Jensenman

yeah, i think its either the coil or a new rail. ill definitely try the coil first and let you guys know how it goes

Its a fairly cheap peice. Try a fill and tap before replacing it.

Cheers

[Jensenman]

cheap or not i cant seem to find one for replacement. but im definitely going for the fix before buying a replacement