NickG32

When I say manually locking the bolt catch, I mean using the charging handle to manually cycle the bolt with an empty mag in the gun. It locks out every time that way on its own. I never push in the mag catch like you would have to without a mag in it.

Nope no bra, and I got the bruised up shoulder to prove I don't "limp wrist" the rifle. I am going to try removing a weight from the buffer to see if that helps. If it does, I may try to enlarge to gas port myself. Bought the buffer, tube, and spring from Brownells. It all came labeled as .308.

Got 240 exactly as of two days ago. Got one 10rd and three 20rd mags. It happens mostly with the 10rd but I use it the most cause I shoot prone the most. I really don't know anyone around here I'd trust to enlarge the gas port if that's it. If it's a buffer issue, it's right on the edge of being right and wrong cause it's an every other mag full issue.

I built the rifle. I've already checked the gas block/port alignment and also the gas tube. If it's a buffer issue, too light maybe? It's the standard dpms rifle buffer. What other options do you guys recommend?

Yes, the bolt locks manually. I'm using a dpms rifle tube, spring, and buffer. Has a Red X Arms bolt carrier with a dpms bolt. Haven't tried to swap out for standard bolt catch, don't know if I ever would as I've trained myself to run an AR with a bad lever. Don't have any mags but Magpul and they lock the bolt back on an empty mag when cycled manually. It's got the sass barrel with the mid length gas sysrem. The ammo types are Fed. 168gr Sierra, Fed. 165gr tactical bonded, Freedom Munitions 168gr bthp, and some surplus Georgia Arms 150gr fmj. Cycles like a dream and is pretty accurate with the 168 Sierra, my only complaint is the bolt not catching on an empty mag about half the time.

I've got an Aero M5 set, rifle buffer,tube, and spring, Phase 5s version on the BAD lever. My problem is that I have an intermittent problem with the bolt not locking back on the last shot. Regardless of ammo type. Also I only run the Magpul mags. Kinda perplexed as to why sometimes it locks, sometimes it don't. Thanks for any help you can offer.

I got to thinking that. Maybe their chromed lined interior is too thick? I'll put some rounds down the tube and see if it loosens up. If not I'll get a different carrier and try it again. Thanks Microgunner. What part of FL you in?

Thanks sketch. Well let's see, Vortex flash hider, DPMS SASS barrel, DPMS complete bolt, Red X Arms phosphate carrier with chrome bore, DPMS gas key and bcg repair kit to finish it out, BCM Gunfighter charging handle, Aero Precision upper and lower, CMMG lower parts kit, Phase 5 Tactical BAD lever, extended mag release, DPMS rifle buffer, spring, and tube, Magpul PRS stock (OD green), Magpul MOE+ pistol grip (OD green), Midwest Industries 12" MLok handguard, and some 20rd PMAGs. Still a few things left to get but it is a functioning rifle now. In a decent Plano All Weather case (Pelican knock off).

BTW, I lubed the hell out of it. Sloppy wet and it's still difficult to cycle.

New member from South GA. Been lurking on these boards awhile getting ideas. No stranger to ARs, built plenty in 5.56, and I'm an armorer at work. Put together my first .308 last night after years of talking about it and getting parts. So my first question is, how many of you have put together a 308 bcg and had the gas rings super tight? Once inserted the bolt freely spins no matter how deep it's in, but it is very hard to push in or pull out of the carrier. I know it's the rings and I cycled it by hand maybe fifty times but it's still super tight. I'm guessing some shooting might help out but I've never had one of my 5.56s this hard to cycle. Thanks.