- Thread starter SPAK
- Start date
My can met the shoulder of the barrel. It shot fine. Groups seemed slightly tighter. I stopped shooting with it because I got tired of cleaning it 
Easy place to buy a .2" Spacer?
I run one, and haven't had that issue. If you've used the can much at all prior to install, there may be some carbon or lead in the internal can threads that are preventing it from seating all the way. you shouldn't need a spacer. Actually, if you use the spacer that's hiding in the Sparrow box, you'll end up with very few threads engaging the can. I had a similar issue with a CF can, and that's what it was, some crud int he threads. A good cleaning and chasing the threads inside the can fixed it.
What he said about built up carbon and crud, happened when I tried installing my Spectre can to the T1x. I have taps and dies for all my popular muzzle threads just in case but solved it with CLP and installing/removing it multiple times and wiping off the crud. Now the can shoulders as easy as it should and comes off without any hassle.
Update: it’s actually the oring... when I cleaned it all out the threads are chewing into the o ring which is preventing it from shouldering up to the barrel.
Anyone shoot the sparrow without the oring?? Eventually I can see it cutting it up which may cause an obstruction at some point.
Anyone shoot the sparrow without the oring?? Eventually I can see it cutting it up which may cause an obstruction at some point.
I shot a few hundred rounds without that oring because I accidentally forgot to replace it. It seemed to shoot fine for me. I ended up buying a 100 of each ring in those bulk bags.
https://amzn.to/2TJ38Cv - 013 oring
https://amzn.to/38gGsP4 - 018 oring
Mine looks exactly like yours. I have shot thousands upon thousands of rounds that way with no ill effect.
This is how my Sparrow usually looks before cleaning it. Round count, at least 2,000.
After cleaning.
My cleaning solution. 50/50 mix in a small glass olive jar. Wear latex gloves use at your own risk. Dispose of any way you deem safe.
O-Ring locations and who my o-rings are from. BTW, my hands look freaky because I have latex gloves on.
Disassembly method.
Bottoms out on the o-ring. Turn it until it gets tight and stop. Never had an issue. If it is a concern you can always buy a pack of 1/2x28 spacers to take up the gap.
KOD, buy some of the Dielectric grease discussed in the other thread and you won't need a hammer or screwdriver anymore to disassemble. Coat everything inside and out with it (except the outside of the outer tube, of course).
I have some of that. I'll try it next time.
I’ve been using lubriplate grease on the internals of my sparrow for some time now. Works awesome and keeps things from sticking. Clean up seems easier too.
I ended up taking the oring out, it was so chewed up in there I could see pieces of it shredded. Pretty sure it won’t make a difference. Might just have to clean it more often..
I ended up taking the oring out, it was so chewed up in there I could see pieces of it shredded. Pretty sure it won’t make a difference. Might just have to clean it more often..
