Adamc55

I'm listing this for sale, simply because I dont shoot it much and my attention has been drawn to a new precision bolt build. This rifle is in amazing condition and shoots great. All of the tuning to get an lr308 running good is done and it's ready to go. Shoots .6-.8 moa 5 shot groups at 100yds using 168grn Federal Berger hunter. Parts- Aero M5 reciever set Aero 15" Atlas-s handguard Faxon 18" Heavy fluted match barrel Faxon BCG Seekins agb Elftman match trigger Springco orange spring and heavy buffer Radian lt charging handle Magpul acs stock Odin works safety and mag release Ergo grip Vortex strike eagle 4-16 with Burris rings 1- 10 round and 1- 20 round mag included I'm sure I'm forgetting something. This is a great gun, but I just don't use it much and need the money for the bolt boy. Asking $1,800 plus shipping to your FFL. It would cost well over $2k to replicate this rifle.

Hey guys, it's been awhile since I've posted here. I'm considering letting go of my aero M5 in .308, I just don't shoot it much and the ammo situation has me focusing on other firearms. The gun shoots great, .6-.8 moa with 168grn federal/berger. It took some work to get it running right, including opening up the gas port, but man it's a shooter now. It's in amazing shape and looks barely used. The purpose of my post is to try and see what this group thinks it's value is? If this is the wrong area for a post like this please delete and I'll repost in the right spot. If you add up the cost of the parts, without tax or shipping, it's around $1,800. A lot of the parts are out of stock and have been for awhile. Muzzle brake not included and optic I can price separately. Please let me know what you think Lr-308 build- barrel- https://ar15discounts.com/products/faxon-firearms-18-heavy-fluted-308-win-rifle-length-salt-bath-nitride-5r-416-r-nitride-nickel-teflon-extension-barrel/ gas system- https://seekinsprecision.com/low-profile-adjustable-gas-block.html And armalite tube Bcg- https://faxonfirearms.com/faxon-308-6-5-creedmoor-bolt-carrier-group-nitrided/ Recievers- https://www.aeroprecisionusa.com/m5-receiver-set Handguard- https://www.aeroprecisionusa.com/m5-atlas-s-one-m-lok-handguard Trigger- https://www.opticsplanet.com/elftmann-tactical-match-trigger-curved.html?_iv_code=EFT-ART-EMTRIG-MATCH-S Stock- https://magpul.com/firearm-accessories/stocks/acs-carbine-stock-mil-spec.html Safety and mag release- Odin works Charging handle- https://www.opticsplanet.com/radian-weapons-raptor-lt-ambidextrous-charging-handle-for-ar15-m16.html?_iv_code=RDW-CGH-RLTCHFIF-R0151 Sprinco orange spring and heavy buffer (I think) Ergo grip 10 and 20 rd Mags Don't include optic or rings at the moment

Ok, did that process again doing even more smoothing and I think I have it perfect now. Before/after

Took it apart real quick again and eased the edges on the extractor a little more where it looked like it was gouging the case. Tried 2 sanded cases and this was the result. Definitely better. First one is before the cycle

So I smoothed up the damage and tried to ease a few of the sharper edges on the extractor and ejector. I then tried to polish those spots a little. I reinstalled everything with only 1 o-ring on the extractor spring. I sanded one of the spent brass casings until the imperfections were not visible then inserted it into the barrel. I had to drop the bolt from full lock to get it to seat all the way. I then ejected the casing. Here is the result-

It appears this one is a double spring double o ring set up. Seems really stiff

Here's the extractor removed and uncleaned, should there be 2 o rings on the extractor spring?

Well, last range trip this gun ran flawlessly. Today was a different story. I had just finished a box of federal Berger 168 and that was running really good (has what seems like nickel coated cases) and started on a fresh box of Hornady match 168 with brass casing. Almost immediately ran into problems. The first round wouldn't fire, seemed like a light primer strike. What it ended up being is that the bolt wasn't going fully into battery. I fired about 3 rounds after getting it into battery. Loaded a new mag and chambered a round. Trigger pull no fire I then attempted to pull the charging handle back and let it reseat it on the chambered round. Charging handle won't budge... The bolt was stuck somewhat into battery with a chambered live round. After trying multiple things to get the bolt back, including trying to knock the charging handle back with a small block of wood, I decided to instead tap it forward into full battery and just fire it. Fingers crossed it wouldn't explode in my face. It fired the round. After that I didn't shoot anymore. I feel like something is up with the extractor. It's marring/burring brass like crazy, not so much on the harder cases of the federal. The gun also seems to be denting cases near the neck down. I somehow managed to get a mean scrape on the extractor (see silver in the pics) which may have been caused by try to force the bolt back. I know the gun needs a good cleaning but no reason that should have caused this.

I did not know that. This was my first attempt at delving into the large frame ar world.

I know your numbers weren't specs, but faxons were. At .093" gas port size and Dwell time of 4.875" those are their specs, since they make all the 18" match barrels to those numbers. I'm giving you a compliment, since your numbers that you calculated were right in line with the manufacturer. It must be my certain set up that necessitated a larger gas port to work with the orange sprinco spring. I am not discounting your input in the least, you helped me attain a well working rifle and I thank you for that. These numbers should be shared so that others may know what works and what doesn't. (It seems like a lot of people are using Aeros upper/lower combo and faxon 18" barrel)

Please do Gun works great with 168gr, I'll have to wait to try different loads and see how it does. Your advice did make a nicely working gun. In Faxon and Wash's defense, faxons barrel specs were right in line with your numbers and the gun did operate after swapping the buffer spring to a lighter one. However I also didn't have a chance to test that set up with different loads. In the end I decided that your advice was good, as it gave me more room for overall adjustment without sacrificing a working set up, and I'm very happy with the outcome. As a side note, to make the gun cycle with the orange spring, I did still have to open the gas block 1-2 full turns more than with the weaker spring. Even after drilling out the gas port.

Are you talking about the screw that adjusts how tight the upper/lower fit together? If so I've never even touched that on all 3 of my Aeros

Yes it is that exact barrel. Also running a Fortis r.e.d. brake, not sure if that makes a difference in the gas system

.0995" gas port Rifle length gas system on 18" faxon barrel Armalite gas tube Sprinco orange spring 5.4oz 2.5" buffer 7" buffer tube Seekins lopro adjustable gas block

Another great range day with this rifle. Got it running perfect now. Installed a new Ergo grip and at first I didn't think I'd like it because of the big palm swells, but I actually like it alot.

Just got back from the range. Gun ran great with the enlarged gas port and orange spring. A small adjustment on the gas block was all that was needed. Gun seems to like 168 grain, might try some heavier stuff eventually. I need to start reloading...

I would double check the length of that gas tube, that ended up being the main issue with mine

Nothing, that hole is rather large compared to the port on the barrel

Well after thinking about it a little more I figured I can always shut the gas block more all the way to closed but I can only open it up so much. So I went ahead and got another bit, .0995", cost a whopping $.78 at the local machining supply store. Fortunately the aero atlas is super easy to take on/off. Took about 5 minutes in all and I got it drilled out. Blew out the barrel, ran a bore snake through a few times and reassembled everything with the orange spring. I'll go test it out this weekend. Hopefully I didn't make a $300 mistake.

I am still using that weaker spring. Would there be any benefit in using the orange spring if the gun is running good?

Not entirely sure, I had an idiot moment while at Lowe's. I think I was reasoning that I'd have more adjustability if the port was larger but then I realized I didn't have to have the gas block open all the way for it to run. In fact it's probably close to 60% threaded in with room to adjust down still. Leaving it alone for now. No sense in trying to fix what's not broken

The closest I could find to.1" is a 7/64" bit (.109") do you see any issue with using that size? Will it not really matter since I have the adjustable gas block?

But seriously I'm not crazy about the mag release, might take that off

If you like that then you'd love my blue PCC!