clandestine
AR-15 Savant
I forgot about that. I had that problem on the two barrels that had correct sized ports and they didn't work with the SLR's. You had to open them up for me.
Well that guy don't know anything. AR's are Legos bro.
I forgot about that. I had that problem on the two barrels that had correct sized ports and they didn't work with the SLR's. You had to open them up for me.
Well that guy don't know anything. AR's are Legos bro.
I would troubleshoot with a fixed gas block. If you need one for testing I can send you one.
help please! so i put together an upper. aero m4e1 enhanced upper. 14.5" ballistic advantage barrel. mid length gas. bolt and charging handle out of another upper that's been working fine (16" barrel), full lower (incl buffer & spring) from that same rifle that has been working fine. seekins adj gas block .750.
started with gas adj screw all the way in (closed/blocked). backed it out a full turn or so. no ejection of spent casing. did this a few more times in half turns, and case ejected but only flew a foot or two, new round wasn't chambered. with block all the way open, 4 complete turns out, it stopped ejecting.
i plugged the barrel with a foam earplug and held that in place. put a hex key in the gas tube. put 80psi air down the barrel and the hex key went flying, so seems the block is aligned and air is going thru the tube. i cannot see the gas tube seating into the gas key on the bcg, but in looking at the relation of the front of the bolt to the gas key, and how far the bcg sits, sure looks like the gas tube is going inside the key.
what am i missing?
What is the barrel chambered for .223, .223 Wilde, or .556?
Did you check head space? What is it?
What did the cases look like? i.e. swiped, extractor marks on rim, primer condition?
Was the lower with buffer and spring also from a mid-length gas system? I did a switcheroo last year that had a similar cycling problem and I felt like a moron because my buffer/spring was too heavy for the shorter gas system. So it was having a tough time overcoming that resistance. I'm not a smart man.
Brass looks good.
Before you change anything try other ammo. PMC is not great ammo to troubleshoot with.
super appreciate all your input and advice! i need to keep using pmc bronze because i have a bunch of it and this gun needs to work with it.
The lower you used for the test? Same lower you had problems with?
What I'm trying to pinpoint is did just installing the JP lightweight carrier make it cycle or was there a different buffer and spring used?
when it fully worked, i did use the jp full lower, and jp lmos bcg. so yeah, i should use the non-jp lower with the jp lmos bcg and see what happens. and then perhaps just the jp actual bolt and everything else non-jp. i just had a brief window to test so just did the one test.
Have you taken the bolt out of the carrier to check the gas rings? In addition to mag and buffer issues, that got me once. Caused feeding/cycling/ejecting issues. Rotated them so the slots were staggered and lubed a bit and she ran like a champ.
Just another idea on the heap!