How often do I need to clean the piston parts? I took mine out after yesterday's first run I found there are alot of carbon/black stuff round the parts. If I push the piston and it moves in and out smoothly then it should be more or less ok still right?
Love to find out what one with a scope would do at 100 yards
You should clean it after every trip. If you let it sit for afew too many weeks the carbon will oxidize and seize the gas plug.
100% polymer on mine and so is the piece it screws into. There is a nut moulded into it for the screw to go into.
Not sure if this is the best place to post this but here goes, my son bought a t97 ftu and after about 300 rnds it has started firing two rounds in a row with one pull of the trigger. We've cleaned it thoroughly and still the same issue, any help by the t97 gurus would be greatly appreciated.
Thanks in advance![]()
Ugh. My friend who previously sent his for a sticky trigger return is now doing this. It drops the striker without another trigger pull.
I can't see any noticeable difference between his trigger pack and striker and either of mine.
It did it today 3 / 70 shots. And a the other day 4 / 100 shots. Just thought it was excess oil on the trigger surfaces... nope.
Any other ideas or is this all going to be a send away issue?
The firing pin has been phosphate coated/given whatever finish is on the rest of the gun, which as far as I can tell, is something you're not supposed to do. It makes it rough, possibly sticking it in a protruding position when the bolt closes, which may cause a slamfire in commercial ammo.
Pull the firing pin and work it over with 1000gr sandpaper until it is smooth to the touch, particularly on the raised "head." (but not the very tip, think of places it would contact the inside of the bolt) It should only take about a minute. Also ensure the firing pin channel is clean and dry.
I also did some testing by inducing slamfires intentionally (easing the bolt forward, pulling the trigger, then releasing the bolt so that it strips a round off the mag and chambers it with the hammer following it home) and found that I could not slam-fire mil-spec ammo. (M855/M193, etc) The hardened primers give it enough resistance that it needs a proper hammer strike.
It's not the firing pin. The striker is not being held by the trigger pack and it dropping it again.
Take a look at the trigger pack. The pins can pop out of the housing holes and drop the sear or trigger disconnecter out of alignment enough to be a problem. There's nothing holding them in but spring tension and the receiver fit, so they can pop out of alignment really easily when the pack is taken out of the rifle.
The striker is not being held by the trigger pack and it dropping it again.
Take a look at the trigger pack. The pins can pop out of the housing holes and drop the sear or trigger disconnecter out of alignment enough to be a problem. There's nothing holding them in but spring tension and the receiver fit, so they can pop out of alignment really easily when the pack is taken out of the rifle.
Under what conditions? Are you releasing the trigger and instead of a reset the hammer falls? Can you recreate it while dry firing? Just wondering how you observe that this is definitely what's happening.
Just trying with mine, the bolt doesn't go back far enough to pick up a new round off the mag without cocking the hammer first, so it can't be short-stroking. All I can think of is it's either being accidentally bump-fired (if you're too light on the trigger, the recoil will make you pull it again, thats happened to me a few times) or the rifle is out of spec and there's nothing to be done.