Airsoft 12g co2 canister Alan key head

[CPT]

Hi all, this is my first post hope anyone can help. sorry to make it fairly long wind but want all info there 
 

 

I have just been given a  Python .357 Snub nose magnum CTG

Q.) I’ve lost the Alan key tightening bolt for gun mentioned above. I have 2 other blowback airsoft pistols/; (colt 1911 100th anniversary edition) and a (KWC Tanfoglio witness 1911) . 

 

both of these Alan key tightening bolts  are not long enough anyway for the Python .357 Snub nose magnum CTG and only go in a quarter turn if that . These I’m pretty sure are m12 / 12mm bolts at 8mm length. 
 

Do you think the magnum needs a smaller size which is kind of obvious. But are there any websites that sell these Alan key tightening bolt for specific guns or should I just DIY it with a pack of bolts from eBay and cut length to size, and dremel and sand a round inlay for the canister so the bolt don’t square of the canister if  overtightened ? 
 

Any advice would be great

Thanks

 

[Guest]

I know nothing about this gun, but I’d suggest searching for the exact make