I picked up an ambi MEGA MATEN matched upper and lower combo. I would like to build it into a solid 300 meter accurate and heavy hitter. Need some help/suggestions getting parts together. Namely what to select for:
I cannot give you much as mine is not built yet. But after a lot of back and forth I ultimately went with a rained arms select 16".
One thing I can tell you is to avoid the rebranded 7.62 industries NiB-x bcg that has been going around. 762 industries, black rain ordnance, Rainer arms, ( in rainer’s defense they took care of the problem for me and changes the title of the product on thier website to something more appropriate) and few others carry it but, it all comes from the same company that dissappeared after pumping the market full of carriers with bearring surfaces like zippers, flaking finishes, tool marks, and other shotty workmanship.
There is a ton of info on all this over at TOS. Full mass carriers outside of dpms or armalite were the toughest part of the hunt for me. Hope this helps.
I was looking at the Ranier Arms select barrels. I’m leaning more towards the 16" length as well. Thanks for the heads up on the (762 Ind, Black Rain Ord, and Rainer) BCGs. That’s disappointing to hear. ANy suggestions on legit BCGs? I was considering an SR25 BCG but they are hard to come by and Knight’s $$$$$. I love their stuff and have a bunch but damn, they are proud of their stuff… I will have to suck it up and go back to reading on TOS I guess.
Please do. The AR variant section of TOS can be very informative… At least for .308 compliant and maten build info. For a bcg … After I returned my 7.62 industries bcg to Rainer I saw a thread in the forementioned section regarding a shadow ops NiB-x bcg. The op of the thread posted pics. The bearing surfaces looks smooth and clean as well as the finish and machining. The OP was pleased so I jumped on one but have yet to receive it so I can verify nothing. Weather or not shadow ops grabbed a ton of dumped 762 industries bcg’s and cleaned them up OR if it is their original components is a mystery to me. Like I said… The bcg was the toughest company selection for me. Everything else was easy. I had no idea KAC sells 308 bcg’s seperate of riffles… Would they be dpms or armalite ar10? Sorry don’t know my KAC very well…
The MaTen was a lesson for me. Handguard selection and the bolt… especially the rebranded 7.62 Ind bolts were frustrating. I ended up buying a stripped DPMS bolt carrier and cam pin, a gas key, and bought a JP bolt. The bolt just arrived this morning so I can’t tell you how it turned out yet. We shall see.
I have a couple of the Shadow Ops bcg’s. They look great. BUT, I haven’t gotten my assembly together to know how they headspace. Bought a Fulton chrome-lined criterion barrel for my first one.
I know WMD Guns is now selling a .308 Nib-X BCG as is RCA (Rubber City Armory). Jury is still out as I have not seen any long-term feedback on either of them.
I noticed that “outside of Armalite” was one of the criteria named. Sorry if I’m ignorant, but what disqualifies Armalite?
I know shadow ops does shipping in batches so it may be a bit of a wait. But I must have ordered 3 weeks ago and still no shipping email notice and I can’t get them to answer an email to save my life. Was this your experiance as well?
For most it is magazine compatibility. More SR25/DPMS pattern magazine options nowadays than the AR10 specific mags.
Mine shipped a week after order. Perhaps I got lucky in timing? Not sure. The barfcom thread I’m guessing increased sales, along with the good price (some forums had a discount code that likely boosted sales further).
I must be confused: I was under the impression that a Mega could support both the Armalite style barrel and bcg, and non-Armalite mags at the same time. Is that not the case? (If not, good to know).
Yep, I’m trying to keep everything in the SR25 / DPMS pattern realm. I’m not sure if Knight’s sells their BCG for the SR25 separate or not. I haven’t seen it “officially” for sale but I have seen them from time to time.
I was looking at these for BCGs as well. Any experience out there?
Link to the RCA .308 BCG: https://www.rubbercityarmory.com/scripts/prodView.asp?idproduct=44
Thanks Nick. I admit I’m interested in the WMD NiB-x. I have 3 of their 5.56 offering (auto). Although I haven’t run thousands of rounds I’ve got several hundred on an LMT MRP (10.5" SBR) and several on a Noveske 10.5" suppressed and unsurpressed. The finish does indeed clean easier but I’m still unsure about the wear… So far so good.
No they don’t… Funny I just saw this post. I sold one earlier this week.
The differences between DPMS style and Armalite / KAC barrels is the gas port location and gas system length. All the extensions are the same , dimensionally the bolts and carriers are the same and interchangeable as complete assemblies. As for bolts and carriers, DPMS style carriers have non spring loaded firing pins and a slightly different gas relief port setup. Armalite carriers have spring loaded pins.
kalieracer - damn…well, thanks for the thought and the intel on the variances. It’s difficult to get solid, fact-based, info without all the personal beef on these boards sometimes. If you happen across any others drop a brother a line.
If you have the cash to spend:
Fortis (when they come out in .308) http://www.rainierarms.com/?page=shop/detail&product_id=3366