Lr-308FUn

I got this Aero M5 build with a BCA 16" mid-length gas system DPMS profile. I have had no issues with it firing got about 340+ rounds through it without a issue. I have read that I could need a Armalite mid-length gas tube instead of a DPMS length. I know it looks a bit short, but works fine. So leave it or go with a Armalite tube.

Well poop, so checking now is kinda not needed.

I didn't head space my current new build, I have about 340+ rounds through it already. I have never head spaced any of my AR15 builds. I did go with DPMS profile for the build. So should I still get it checked. What gauge should I use. I had a set of gauges but it seems they came up missing, all I have is a 7.62x39 Field guage. Is there any way to check it without a guage. I am not sure if my local smith has a 308 guage since he mainly works on older combloc firearms. thanks for replies.

Thanks

Thanks for the replies all

Here it is my first LR-308/AR-10 etc rifle Barrel: Bear Creak Arsenal 16: 416r stainless 1:10 Heavy profile barrel/Aero Precision LP Gas Block/DPMS Mid-length gas tube, DMPS Profile Handguard: Acme Machine 15" M-lok light weight HG/With UTG Sniper Bi-pod with QD mounted on 1 of the 2 5" m-lok rails that come with the HG DPMS high profile Muzzle device: KaK mini comp/flash hider (replacing with a Strike Industries Jcomp) Upper: Aero Precision M5 DPMS high profile BCG: Acme Machine 7.62 DMPS profile Nickle Boron BCG/standard GI charging handle, Replacing with Acme Machine 308 ambi charing handle with back in stock Scope & Mount: Mount is a DIvision G4 SPR mount/found on Amazon for a great price, I have been using these mount for years, they are exactly like the Vortex mounts but for only $39.95/Prime shipping got it in a day. Scope is a Vortex 6-18x44 V-Brite retical Crossfire ii. Nice clear glass works well, now just need to sight it back in. I had a Rock River Arms mount that kept coming loose paid $70 bucks for it, took it back refund got the Division G4 1" mount. Lower: Aero M5 lower with Aero M5 lower parts kit Aero M5 buffer kit, with Magpul MOE butt stock, would like a different stock just not sure what to get really. Would like maybe more cheek room Magpul MOE K2+ grip 2-20 round Magpul P-mags Second pic show with the Rock River mount, you can see the differnce in mass between the two mounts. I shaved like 5+ ounces off this rifle. I also had the Magpul SL-K Stock on it in that pic, didn't look right to me so got the MOE stock. That SL-K stock looked way to small on this rifle. The two targets are from 105 yards with Federal 180 grain SP ammo & 150 grain 7.62x51 ammo. Just the shoot & see target with out the back target is the 7.62 the other is the 180 grain. I don't think it likes 180 grain much. I have to redo most of the test shooting after that mount kept coming loose, I really wasted about 100 round of ammo trying to zero that scope in to get off again for the mount coming loose. Other pics are build stage pics. Thanks Also it shows the 1x6 Primary Arms scope, which I sold with my AR15 pistol build to fund this build & optics. I did like that 1x6 but for hunting it wouldn't done what I want, I wanted a scope that I could dial in with the correct ammo & make the shot count & not have to worry where it really went. The 1x6 is really for CQC out to like 200-300 yards, I have seen some hit farther than that with those scopes but I'm not getting younger, wear glasses so need that good higher power scope. I know this has been a fun build & I also think that this build ended my relationship with the woman I was with, oops lol.

I did return it & got that Divison G4 mount off Amazon, I have used the 30mm tube size mount on a AR15 with a Primary Arms 1x6x24 Acss retical scope but on the 308 it just wasn't enough magnifacation for what I wanted to do with the 308 so I saw that Rock River Arms mount, paid $70 for it at my local gun store, it came loose 3 times, paid $39.95 for the Division G4 mount free 1-day shipping. The 1x6 scope was used for about half the ammo shot on this build, that Division G4 mount didn't even flinch. I like it also because it is lighter than the Rock River Arms mount. Thanks for the like & replies.

So has only one tried any of the Rise Armament drop in triggers yet, I have been looking at a few of their models Any feedback would be great Are they worth the money, I do like their price point. Thanks

Hello thank for having me.. From Indiana.. I am into the budget working class working AR10 rifles in either DPMS or Armalite profile. Some companies that I have used in my current new build Aero Precision Acme Machine KaK Vortex Division G4 Magpul UTG Just curious on others new from scratch builds. I think it feels good when you put a rifle together & it functions correctly. Ammo used Federal 7.62X51 Nato (40)* Federal 308 win 180 grain/150 grain Soft point (40) Tulammo 150 grain 308 win FMJ (120)* UMC 150 grain FMJ (20) Winchester 150 grain SuperX 308 win (20)* Not a single malfunction using all ammo listed. *=grouped well Some was shot using a Primary Arms 1x6 Acss retical scope around half The rest was shot using 6-18 Vortex Crossfire ii V-brite retical Divison G4 mount Has a Rock River Arms mount/FAILED/ would come loose even after tighting them down. Good mount for 300blko or 5.56/.223 but not 308 I like the new mount looks streamed line more. Thanks for having me I hope to hear some feedback & suggestion on perphaps another good budget barrel not stainless in 308