I bought a 'used' 2013 m305 a couple months ago.
It apparently had no rounds through it, but came with USGI op-rod/spring, USGI fibreglass stock, aftermarket flash suppressor and a scope mount, perhaps more but I can't recall (As you can tell, I am a m305 noob).
Well, after about 60 rounds, I have yet to put a magazine through it and have all 5 rounds fire properly.
First, the scope mount causes ejection issues. You can bet about 3-4 times out of 5, a casing will get caught in the bolt. I noticed m14.ca specifically states their scope mount addresses this issue so it seems to be common.
But also early on I noticed that whether or not it caught the casing, even though it loaded the next round, the trigger wouldn't #### and the rifle wouldn't fire.
I searched the #### out of this (hopefully this trigger problem hasn't been addressed and is sitting right under my nose). I've broken the rifle down, cleaned it numerous times, greased it, cleaned the gas system at least 3 times now.
Well, yesterday I finally took the scope rail off, thinking that was causing the problem - Nope. Although casings no longer can be caught up in the bolt, it still often fails to #### the trigger after the shot. Last magazine, out of 5 rounds, it cocked once.
If I rack the bolt manually, the trigger cocks every time.
I'm hoping someone here can lead me to an answer.
In breaking down the rifle I've noticed a few things that concern me:
-The gas piston is 'sticky'. Even after a fresh cleaning, it doesn't move freely. It will move back an forth slowly with the tilt test but it seems to have a vacuum effect. Now I've read about the gas system shims, but I cant conclusively say the rifle needs it. After the last cleaning I did check the alignment of the holes (also checked that they were clean and cleared) and they seem to be fine, perhaps the slow movement of the piston says otherwise?
-The gas piston often seems to jam up a little. Sometimes after loading a round (manually or semi-auto fire) the bolt stops short about an inch from completely closing. I believe this is the piston jamming up. The part of the piston with the notch doesn't seem to fit quite flush in it's housing (?), or has to much room to play, leading to binding.
-The bolt 'arm' (underneath the barrel, the part that meets the gas piston) sits a little off, I don't know if this is a cause for concern, just doesn't look right.
That's about all I can think of at the moment. I've been googling and searching here but have found nothing about anyone else having this trigger issue. The honeymoon stage is worn off and I'm really starting to get bummed I have this supposedly brand new rifle that doesn't shoot worth a crap.
So, Anyone have an idea's??
It apparently had no rounds through it, but came with USGI op-rod/spring, USGI fibreglass stock, aftermarket flash suppressor and a scope mount, perhaps more but I can't recall (As you can tell, I am a m305 noob).
Well, after about 60 rounds, I have yet to put a magazine through it and have all 5 rounds fire properly.
First, the scope mount causes ejection issues. You can bet about 3-4 times out of 5, a casing will get caught in the bolt. I noticed m14.ca specifically states their scope mount addresses this issue so it seems to be common.
But also early on I noticed that whether or not it caught the casing, even though it loaded the next round, the trigger wouldn't #### and the rifle wouldn't fire.
I searched the #### out of this (hopefully this trigger problem hasn't been addressed and is sitting right under my nose). I've broken the rifle down, cleaned it numerous times, greased it, cleaned the gas system at least 3 times now.
Well, yesterday I finally took the scope rail off, thinking that was causing the problem - Nope. Although casings no longer can be caught up in the bolt, it still often fails to #### the trigger after the shot. Last magazine, out of 5 rounds, it cocked once.
If I rack the bolt manually, the trigger cocks every time.
I'm hoping someone here can lead me to an answer.
In breaking down the rifle I've noticed a few things that concern me:
-The gas piston is 'sticky'. Even after a fresh cleaning, it doesn't move freely. It will move back an forth slowly with the tilt test but it seems to have a vacuum effect. Now I've read about the gas system shims, but I cant conclusively say the rifle needs it. After the last cleaning I did check the alignment of the holes (also checked that they were clean and cleared) and they seem to be fine, perhaps the slow movement of the piston says otherwise?
-The gas piston often seems to jam up a little. Sometimes after loading a round (manually or semi-auto fire) the bolt stops short about an inch from completely closing. I believe this is the piston jamming up. The part of the piston with the notch doesn't seem to fit quite flush in it's housing (?), or has to much room to play, leading to binding.
-The bolt 'arm' (underneath the barrel, the part that meets the gas piston) sits a little off, I don't know if this is a cause for concern, just doesn't look right.
That's about all I can think of at the moment. I've been googling and searching here but have found nothing about anyone else having this trigger issue. The honeymoon stage is worn off and I'm really starting to get bummed I have this supposedly brand new rifle that doesn't shoot worth a crap.
So, Anyone have an idea's??
