Issc mk22 just picked it up!

I went out today and put around 450rns down the tube on mine. The only problem i noticed wasn't from the gun fte or ftf it was every so often a round would hang up in the mag itself. but this only occured twice in 450 or so rounds so I'm not to concerend. And only 2 stovepipes which overall I think is pretty decent considering it really isn't even broken in yet and I'm running cheap bulk federal ammo.
I hope this helps a little, if need be shoot me a pm with your email and I can send you a video of me shooting it at the range( nothing fancy, just shooting)
 
Well... The nightmare continues. took it out today after a thorough clean & tightening of all loose bolts/screws. started off OK as I had just 1 fte in 150 rounds of cci stingers... Then it started failing to fire. what started as a decent day turned into 10+ fall to fires in 2 mags. tried a basic cleaning but was unsuccessful. is now in the hands of a gunsmith. I wouldn't recommend this gun to anybody at this point...
 
From what I understand a lot of people are causing their own feeding and cycling problems by not making sure the mag is pushed up securely and holding onto the Mag instead of the gun itself while firing. It actually states this in the owners manual which nobody reads.
 
...i have ensured that the mag is properly seated as I realized right away that its finicky... Also, I haven't been touching the mag as I have a forward grip..
 
I wonder if it's just worth perservering through all the failures until you get up around 1000rds or so to see if the break-in helps.
 
If it was 1 fte per mag I would stick through it but as many as 5 per mag, all the loose screws and now the fail to fires, leave me really concerned. on the bright side, others don't seem to be having as many issues as me.
 
Found this post on another forum. Not sure which bolt he's referring to.........


I have a Mk-22 and the weapon started to have problems firing. It would not fire at least 1 round out of every magazine I would fire. I could see where the firing pin hit the round, so I just dissmissed it as using bulk ammo. I bought some match grade ammo an went to the range, this time I found that the weapon only would fire about 10 rounds out of a 22 round clip. I took the weapon apart and found that there is an alan bolt in the rear of the weapon that keeps the reciever in place. this bolt loosened up just slightly and would cause a FTF if the reviever moved slightly forward. I found as you shoot this the bolt will loosen, and the looser it gets the more failures you will have. I added locktite tightend the bolt. i have since put over 1000 rounds through it with out 1 FTF or cycling problem usuing match grade ammo. I was very frusterated with the gun at first, and now I would be hard pressed to get rid of it, it is a joy to shoot.
 
Ballox said:
Found this post on another forum. Not sure which bolt he's referring to.........


I have a Mk-22 and the weapon started to have problems firing. It would not fire at least 1 round out of every magazine I would fire. I could see where the firing pin hit the round, so I just dissmissed it as using bulk ammo. I bought some match grade ammo an went to the range, this time I found that the weapon only would fire about 10 rounds out of a 22 round clip. I took the weapon apart and found that there is an alan bolt in the rear of the weapon that keeps the reciever in place. this bolt loosened up just slightly and would cause a FTF if the reviever moved slightly forward. I found as you shoot this the bolt will loosen, and the looser it gets the more failures you will have. I added locktite tightend the bolt. i have since put over 1000 rounds through it with out 1 FTF or cycling problem usuing match grade ammo. I was very frusterated with the gun at first, and now I would be hard pressed to get rid of it, it is a joy to shoot.
Click to expand...

You can access the allen bolt with the stock folded at the back of the receiver through a hole use some blue lock tight not too much just a little.
 
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