I have a scope set up on this CYMA CM.401 airsoft MP5 replica. It’s compatible with 11 mm rails by default, hence the adapter between the scope and the 22 mm MP5 rail.
I’ve lost one of the… “clamps”(?) for the adapter alongside the screw a few months ago in an airsoft match, and I thought that I’d get by with just one screw since “oh come on, it’s just an airsoft gun”, but it turns out that even on an airsoft gun the force from the electric motor is enough to throw the scope’s aim off with only one screw.
I want to purchase a replacement “clamp” (and a screw if possible, but not necessary, since I can just borrow one from my red dot), but I don’t even kinda know where to start looking for one. Can anyone help me out?
Like others have said, your best bet is to just buy new a new scope mount and rings from any firearms shop. Easier and less headache. You will need to know your scope’s tube diameter.
However, if you are dead set on repair rather than replace (and are in the US), for oddball engineering projects like this I tend to use McMaster Carr. If they if they don’t have what you need I would be very surprised. They are an engineering supplier, and have prices to match. But they sell anything thats not electronics. Excellent customer service too.
For electronics builds or repairs, I recommend DigiKey.
Between the two you could build or repair just about anything.
I think the best solution would be to replace the scope rings with raised Picatinny compatible rings. That removes the need for the intermediate adaptors at all. With new rings you can attach straight to the claw mount. Something like this.
The other solution would be trying to hunt down a non-Picatinny riser which is probably going to be more of a hassle, and the new setup would be better anyway. Costwise I doubt you’ve save much trying to save that broken adaptor, or at least enough not to use the opportunity to streamline the setup.
Locktite on the next set of rings.
Kinda ashamed that I never thought about just getting scope rings! I’ll definitely look into those. Thanks for the Locktite tip!
How is the scope working out? I assume it’s a 3x or 4x non-illuminated meant for a .22lr?
I’ve been doing well with a cheapo Monstrum 3x prism sight. It’s got an illuminated reticle making its usable enough at close quarters while being handy for primarily outdoor play.
I really like it, and yeah, you were close! It’s a 32mm non-illuminated scope with a 3x-9x variable zoom. And it is in fact meant for .22LR - I picked it up brand new for a measly 250 PLN (~$60)
Granted, I rarely, if ever, use the higher zooms, because neither my MP5 or my cheap sniper rifle are accurate enough to make use of that kind of magnification.
And that prism sight looks real nice! I don’t mind having a basic scope, since I’ve gotten quite decent at hip firing at close range, so I’d rather have the added power a scope like that provides.
And since you’ve shared your build, I’ll share mine, in my dingy old garage back when I was cleaning it.
That one’s without the foregrip and the laser module attached. It’s quite literally a poor man’s G3, but hey, as long as it works.
EDIT: By the way, judging by the positions and looks of all the pins and screws and some other parts, I assume that’s also a CYMA?
It is a CYMA. In retrospect, I think a railed grip like yours would have been more practical than my SD, but I do like being able to fully collapse the stock.
If I can be a spoilsport, please, please don’t use lasers. Lasers introduce real world eye safety hazards, some more than others, but none of them are great. Especially cheapo lasers from aliexpress or wherever can sometimes be stronger than listed because neither the buyers or sellers tend to care. My laserbox is fake and is only an external battery compartment for the gun.
but I do like being able to fully collapse the stock
My stock is also foldable, actually! Emphasis on foldable, as yours looks to be actually collapsible.
If I can be a spoilsport, please, please don’t use lasers
Very, VERY valid point, and yeah, I don’t use my laser at all, really - it functions as tacticool decor more than anything else. I forgot to mention it’s a laser+flashlight module, with a function to switch on either or both, and so I always basically use the flashlight and nothing else.
I saw the button to fold yours but didn’t see a seam, so didn’t know if it was just fixed with some cosmetics. I really like bringing the stock in both for close quarters and even for being in the woods to very easily get behind the scope while wearing a mask.
I have a friend who got an MP5K and it is even better in close quarters.
Something like this? https://ant-supplies.uk/scope-sight-optic-accessories/replacement-rail-jaw-clamp-plates.html
No idea if that’ll that’ll fit yours, you might be better off replacing the scope mount entirely. Could try finding someone to 3d print a copy of the remaining clamp too.
That actually looks really close! I’ll take a better look at it when I get back home next weekend. Thanks!
