Question about my setup, I’m wondering if this is normal (my first silencer)…When shooting I can feel blowback on my forward hand, it actually started to turn my hand black. It has to be coming from the surefire mount based on where I can feel it. The gas block and barrel in front of it (and the BCM Keymod) is turning black in front too and I’m even getting carbon buildup on the forward part of the barrel. Could this be coming from the round vertical ports on the Warcomp and back through the mount onto my hand/barrel?
My setup:
-11.5 DD barrel
-BRT .067 gas port reducer (built before I knew I was getting the can)
-Surefire Warcomp
-Surefire SOCOM RC2
-H2 buffer with standard carbine spring
It runs both with and without the can but I can tell its overgassed with it on. I get a little back through the charging handle but not much. My plan is to reduce the port some more to run suppressed only but is there anything else I should look at regarding the gas/carbon up front?
Same from my Socom SB and Mini. Probably from the alignment boss and corresponding relief, they’re not airtight, which is probably a good thing for removal.
I think so, yes. From your description it sounds like the gas block-barrel interface, or the gas block-gas tube interface has more leakage than it should. Can you tell if the gas is coming from the gas block, or going toward the block? A bit of gas leakage is normal, particularly for a new build before all the interfaces seal. However, it’s too much if it turns your hand black.
It’s definitely not the gas block. I ran this from about November last year until 3 weeks ago without a can and no leaks, no marking from around the GB. Also my grip is in front of the GB and the front of my hand is what’s catching the gas so it can only be coming from the back of the can. If photobucket wasn’t stupid I’d put up a picture…entire barrel from the back of the can to around the gas block is black now (I coated it with FDE so it’s easy to see). I guess my main question is: This normal or not?
All 6 of my surefire SOCOM suppressors exhibit this. Even on a bolt gun, you can see it. It comes back through the index slot on the MD. This is the only spot on the taper surface that would allow gas to come through. If you are looking at it side by side with say a thunderbeast suppressor with the large taper surface, it does not have an index slot and seals the muzzle device to the suppressor 360 degrees. If the surefire did not have an index slot and the taper mount surface went 360 around, it would not leak any gas out either. Non issue and normal behavior for this system. Keep on shooting.
Also, for best results, keep the taper surfaces clean on both the MD and suppressor. I run my finger over both with fireclean before and after shooting. Also mount the suppressor with the muzzle up, for the best results. I do this with all of my suppressors now for the best consistency.