Ar trouble

[25mm]

OK my AR is having feeding, ejecting issues? I replaced the buffer spring and cleaned the gas tube and replaced the gas block. Almost seems like it is still short stroking any other suggestions out there

 

[Max Owner]

Lube the bolt carrier?

 

[25mm]

Yes lots of oil on the bolt, just a gremlen so far

 

[GunfighterAlpha]

AR Brand?
Mag Brand?
New or used gun and mags?

 

[25mm]

CMMG
LAR/ Pmag both
it was used at the time of purchase new mags

 

[smak_daddy]

What about ammo? Are you shooting steel cased?

 

[GunfighterAlpha]

Gas key and tube aligned properly? Shortstroke sounds like an issue up near the front end if you've replaced the buffer spring. I would continue any further testing with the Pmags as LAR's are notoriously unreliable.

Try some wheel bearing grease on the 4 contact points on your carrier. I can hear and feel the difference in mine when it cycles.

As mentioned above, the steel casings could cause potential problems as well.

 

[Amazingkg3]

Either insufficent gas pressure to cycle the bolt, or resistance on the bolt failing to cause a full cycle.

-Lubricate bolt
-Change to lighter buffer, lighter buffer spring
-Ensure Buffer tube is secure
-Ensure gas block is properly installed, you could have gas leak (gas tube could be insufficent size for the installed block)
-Could even be a flash hider/Muzzle break issue in rare cases I've seen

 

[barsik]

check for proper bolt to bolt carrier friction/tension.remove complete bolt from rifle,remove firing pin retaining pin,firing pin, and cam.point bolt carrier down vertically.bolt should not move or move very little.if bolt falls out,replace gas rings.also clean inside of bolt carrier,especially rear of bolt carrier.remove all residue.relube and reassemble.shoot.shoot lots.smile or grin.enjoy.

 

[angrysoldier]

if your near new brunswick i can help you out.

 

[25mm]

I am in Manitoba but thnks I will update when I try to re adjust the gas block