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For any of you that have already assembled your Mega Maten builds, what did you use as vise blocks or holding mechanisms for your upper and lower receivers? Are there vise blocks available for sale that fit the Maten .308 receivers? And (if it fits) is a traditional vise block like the DMPS .308 "panther claw) safe enough for barrel installation? You'd think I would have given this some thought BEFORE all the parts started showing up at my door. Ha.
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I didn't have or use a vise block. What I did was use two pieces of 1/2" corian cut to fit the upper. One to support the top rail and the other to fit snugly between the attachment lugs and placed in a vise. My uppers are Mega and seemed pretty stout around the front of the ejection port, which is usually the weakest point on an ar15. I don't really recommend this, but with a little fore thought on what is going on and the forces involved, it can and has worked for me.
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I used the DPMS claw for an AR-15 turned on its side with a piece of cutting board on the other end. Worked like a charm.
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I used Armalite's blocks that fit the AR10 and 15. I had to dremel a bit of material on the bottom piece so it would fit snug against the receiver. Works great.
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Thanks for all the feedback guys. For what it's worth, I called Mega Arms direct to see if they had any suggestions. They recommended using the DPMS .308 panther claw.
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Quoted: Finally finished it!! Now it's time to break it in! http://i126.photobucket.com/albums/p95/atreggie/IMG_0678.jpg http://i126.photobucket.com/albums/p95/atreggie/IMG_0673.jpg http://i126.photobucket.com/albums/p95/atreggie/IMG_0675.jpg Mega MaTen .308 Magpul UBR stock (OD Green) Magpul 20 rd. mag (OD Green - Cerakote) Ergo Grip (OD Green) Geissele SSA trigger group WMD Nickel Boron BCG Custom John Benjamin Barrel - 18" Fluted SWS E1 Free Float Tube - 15" (OD Green - Cerakote w/T-numbers laser etched to match MaTen) Adjustable Gas Block Atlas Bipod AAC 7.62 Muzzle Brake AAC 762-SDN-6 Supressor Leupold MK4 4.5-14x40mm Scope w/M1 Turret swap I had a local laser engraving shop put the T numbers back on the rail after it was Cerakoted. Turned out awesome and I was able to match the same style numbers as the Mega MaTen receiver. Before: http://i126.photobucket.com/albums/p95/atreggie/IMG_0657.jpg After: http://i126.photobucket.com/albums/p95/atreggie/IMG_0680.jpg I think this pic is a little blurry, but the numbers look just as crisp and perfect as the receiver. View Quote |
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Quoted: All these builds look great. I have my upper/lower set and my barrel. Now I just need to figure out which handguard...which I keep going around in circles with. I have the JP VTAC version of this rail on one of my ARs and it is definitely a little heavy, but apparently this model is supposed to be 3-4oz lighter. I like how the accessory rails screw directly into the rail without having to use backer plates. Anyone handle or use one of these? http://i114.photobucket.com/albums/n248/bigdann17/8E22B0FC-5D50-4697-88CD-754C8158161A.jpg Also looking at the Apex rail and the soon to be released Midwest Industries Keymod (but don't know if I can wait much longer). View Quote It just sits there in its ( now ) CeraKoted glory..... ''] |
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I'm still hoping Noveske releases a 308 NSR rail at some point, but who knows if or when that will ever happen.
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I have read thru most all of this thread. There is a lot of talk about the JP Rifles LMOS low mass bolt carrier group being one of the best groups to use for a build. From what I can see, the JP LMOS bolt carrier group must be used with the JP low mass buffer which appears to be a rifle length buffer. If it is rifle length, then it must be used with a rifle length buffer tube instead of a carbine length buffer tube. Is this correct?
I want to use a carbine length buffer tube on mine along with a carbine collapsible stock like a Magpul CTR stock. Am I correct in thinking that the JP low mass bolt carrier group and the JP low mass buffer will not work in a carbine length buffer tube? |
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OK. Is this combination possible- an M4 carbine buffer tube, Magpul CTR stock, M4 buffer of some sort such as H1 or possibly a Slash buffer, then the JP low mass 308 bolt carrier and JP 308 bolt assembly.
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Quoted:
For any of you that have already assembled your Mega Maten builds, what did you use as vise blocks or holding mechanisms for your upper and lower receivers? Are there vise blocks available for sale that fit the Maten .308 receivers? And (if it fits) is a traditional vise block like the DMPS .308 "panther claw) safe enough for barrel installation? You'd think I would have given this some thought BEFORE all the parts started showing up at my door. Ha. View Quote I just picked up a JP vise block set (supposed to work with both -15 based and large-frame AR uppers) off Dvor. Should be here by the end of the week. I'll throw some pics up when it's here and I've gotten a chance to use it. |
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OK. Is this combination possible- an M4 carbine buffer tube, Magpul CTR stock, M4 buffer of some sort such as H1 or possibly a Slash buffer, then the JP low mass 308 bolt carrier and JP 308 bolt assembly. View Quote I don't see a reason why that would not work. One more point of interest, is that I'm also running an adjustable gas block. It's on there because the rifle will eventually be run with a suppressor. Nevertheless, it's handy to have for tuning purposes. I'd say with the adjustable gas block and the JP low mass BCG you should be able to run any combo of buffer and buffer spring you want and be able to tune it. All that being said, I do plan to eventually pick up a JP silent capture spring. |
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Great! Thanks for the info. I will also be using an adjustable gas block with mine.
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Quoted:
Finally finished it!! Now it's time to break it in! http://i126.photobucket.com/albums/p95/atreggie/IMG_0678.jpg http://i126.photobucket.com/albums/p95/atreggie/IMG_0673.jpg http://i126.photobucket.com/albums/p95/atreggie/IMG_0675.jpg Mega MaTen .308 Magpul UBR stock (OD Green) Magpul 20 rd. mag (OD Green - Cerakote) Ergo Grip (OD Green) Geissele SSA trigger group WMD Nickel Boron BCG Custom John Benjamin Barrel - 18" Fluted SWS E1 Free Float Tube - 15" (OD Green - Cerakote w/T-numbers laser etched to match MaTen) Adjustable Gas Block Atlas Bipod AAC 7.62 Muzzle Brake AAC 762-SDN-6 Supressor Leupold MK4 4.5-14x40mm Scope w/M1 Turret swap I had a local laser engraving shop put the T numbers back on the rail after it was Cerakoted. Turned out awesome and I was able to match the same style numbers as the Mega MaTen receiver. Before: http://i126.photobucket.com/albums/p95/atreggie/IMG_0657.jpg After: http://i126.photobucket.com/albums/p95/atreggie/IMG_0680.jpg I think this pic is a little blurry, but the numbers look just as crisp and perfect as the receiver. View Quote How do you like the WMD bcg is it worth getting over a jp lmos? |
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I don't think there's anything worth getting over the JP LMOS. I'd say JP LMOS is pretty much top of the food chain as far as BCGs go. View Quote View All Quotes View All Quotes Quoted:
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How do you like the WMD bcg is it worth getting over a jp lmos? I don't think there's anything worth getting over the JP LMOS. I'd say JP LMOS is pretty much top of the food chain as far as BCGs go. Yep. If thats too pricy, the minimum I would go is a standard phosphate carrier with a JP .308 bolt. |
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Yep. If thats too pricy, the minimum I would go is a standard phosphate carrier with a JP .308 bolt. View Quote View All Quotes View All Quotes Quoted:
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How do you like the WMD bcg is it worth getting over a jp lmos? I don't think there's anything worth getting over the JP LMOS. I'd say JP LMOS is pretty much top of the food chain as far as BCGs go. Yep. If thats too pricy, the minimum I would go is a standard phosphate carrier with a JP .308 bolt. Ok. Does anybody know what the coating is on the black version of the jp bcg? |
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How do you like the WMD bcg is it worth getting over a jp lmos? View Quote View All Quotes View All Quotes Quoted:
WMD Nickel Boron How do you like the WMD bcg is it worth getting over a jp lmos? Honestly I haven't shot it yet. I have a WMD Nickel Boron BCG in my 556 AR and am very happy with it, but I don't know if it'll be different in 308. I chose this because I've had good luck with the smaller version and it was a lot less expensive than JP. Plus it seems that the only JP BCG I could get my hands on was the low mass and I'd heard that they need to be dialed in just right (spring, buffer, bolt, etc.) to work well in a carbine length system. I don't know how much truth there is to that but I figured I'd save a little money, possibly save a little fiddling, and try this route. Time will have to tell. |
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Honestly I haven't shot it yet. I have a WMD Nickel Boron BCG in my 556 AR and am very happy with it, but I don't know if it'll be different in 308. I chose this because I've had good luck with the smaller version and it was a lot less expensive than JP. Plus it seems that the only JP BCG I could get my hands on was the low mass and I'd heard that they need to be dialed in just right (spring, buffer, bolt, etc.) to work well in a carbine length system. I don't know how much truth there is to that but I figured I'd save a little money, possibly save a little fiddling, and try this route. Time will have to tell. View Quote View All Quotes View All Quotes Quoted:
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WMD Nickel Boron How do you like the WMD bcg is it worth getting over a jp lmos? Honestly I haven't shot it yet. I have a WMD Nickel Boron BCG in my 556 AR and am very happy with it, but I don't know if it'll be different in 308. I chose this because I've had good luck with the smaller version and it was a lot less expensive than JP. Plus it seems that the only JP BCG I could get my hands on was the low mass and I'd heard that they need to be dialed in just right (spring, buffer, bolt, etc.) to work well in a carbine length system. I don't know how much truth there is to that but I figured I'd save a little money, possibly save a little fiddling, and try this route. Time will have to tell. I thought the 308 WMD BCGs were made by the same jokers at 762Industries that also made Rainiers NiB BCG that everyone was having problems with? I was considering WMD's 308 bcg for my build bc I have one for my 300blk and really like it, but I read some things saying they were part of the 762Industries debacle. |
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Ok. Does anybody know what the coating is on the black version of the jp bcg? View Quote From this page here: "Right: JPBC-3 Stainless Low Mass Carrier with new QPQ black hard coat treatment." AKA, it's melonited, which is good. |
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Thats a sweet looking build.
I'm waiting to order my SWS to finish off my Nickel Mega build |
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What's the difference between a low mass and full mass carrier? Not sure what kind I need/want?
I'm going to go with JP Enterprises for my bolt/BCG I am looking for a black bolt/BCG Does a bolt & barrel need to be head-spaced for best fit on a .308? It will be going on a 16" Mega barrel. |
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What's the difference between a low mass and full mass carrier? Not sure what kind I need/want? I'm going to go with JP Enterprises for my bolt/BCG I am looking for a black bolt/BCG Does a bolt & barrel need to be head-spaced for best fit on a .308? It will be going on a 16" Mega barrel. View Quote I don't think JP makes anything other than a low-mass carrier for the 308. I could be wrong, though. I don't know if a bolt and barrel need to be head-spaced for "best fit" purposes. I confirm the head-space on my barrels mainly for safety purposes. So far I've had no issues with my JP bolt and Rainier Arms barrel (which I did check the head-space on before shooting). Granted, I haven't shot it a ton yet either, but enough to confidently say that there have been no issues. |
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...and so it begins..... |
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Ok, I've been doing a lot of research and reading. I know the "rule" is that you can't mix and match the different patterns (armalite/DPMS). In my searches I've seen several times now that there are people running DPMS pattern complete BCG with Noveske barrels (armalite extension). It also states on JP Enterprise's site that as long as you use the complete LMOS BCG, you can use it in both DPMS and Armalite patterns. So wouldn't you think this could/would be the same across the board -- meaning as long as it's a complete BCG it will work/space out correctly? If not, how is it that JP can? Is it that some people get lucky with their dimensions and the go/no-go gauges spec out for them?
I'm curious because I'm in the middle of my MaTen build and I have a Noveske barrel, but I really want to get an RCA, WMD or similar with a unique finish on (like it for the ease of cleaning on my ARs). I suppose I could get an armalite bcg and get a company like WMD to coat it, but I don't really want to deal with buying parts, sending them off, etc...the whole patience thing. Thanks for any and all help fellas. Some great looking builds in here. |
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Buy one from a reputable dealer and see. If it doesn't headspace and function check correctly, send it back.
As stated several times in this thread, its a good idea to stick with known quality brands. Not just for quality parts, but for service if you need it. |
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Buy one from a reputable dealer and see. If it doesn't headspace and function check correctly, send it back. As stated several times in this thread, its a good idea to stick with known quality brands. Not just for quality parts, but for service if you need it. View Quote But if he doesn't get the bandwagon flavor of the month, everyone on the internet will laugh at him for being untrendy!!!! |
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Buy one from a reputable dealer and see. If it doesn't headspace and function check correctly, send it back. As stated several times in this thread, its a good idea to stick with known quality brands. Not just for quality parts, but for service if you need it. View Quote I understand and that's why I only buy from a handful of places that have reputable outstanding CS. Just curious as it seems armalite is really the only bcg for the Noveske barrel. Thanks for your response. |
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But if he doesn't get the bandwagon flavor of the month, everyone on the internet will laugh at him for being untrendy!!!! View Quote View All Quotes View All Quotes Quoted:
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Buy one from a reputable dealer and see. If it doesn't headspace and function check correctly, send it back. As stated several times in this thread, its a good idea to stick with known quality brands. Not just for quality parts, but for service if you need it. But if he doesn't get the bandwagon flavor of the month, everyone on the internet will laugh at him for being untrendy!!!! Don't hop on bandwagons as I never impulse buy without doing my homework first. RCA seems to be building a good reputation. I'm pretty sure they're what the Noveske gunners run in their rifles now. WMD has been around for a bit and I have one of their BCGs in one of my ARs. Having both standard and NiB coated carriers, I prefer the coated ones for ease of cleaning. Thanks. |
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Just get the Armalite and have it coated. There are plenty of shops that do the same coatings as WMD, and will probably have a quicker turn around.
I live in Houston, so I have a ton of shops to pick from. Haven't decided which one yet, as I'm not to concerned with cleaning yet. But, I do plan on having my carrier Melonited, and bolt chromed. With extensions, I've read numerous things. But, for the most part, I've found out exactly what you said. Extensions are dimensionally the same, but it's not a bright idea to mix bcg components. But if you do say use an Armalite carrier and DPMS bolt, I believe you'd have to use a DPMS firing pin. But it's always Best to use a complete bcg rather than pieces from multiple sources. |
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finally got my BCG on Wed, checked the headspace and threw it together that night. Took it out yesterday to break-in the barrel, tune the gas block and 100 yard zero with cheap rem core-lokt ammo. I shot a total of 15 rounds and my last 4 had a 7/8" group. Wasn't expecting that but was pleased with it. Either the barrel likes that ammo or it's a sign of good things to come when I start loading my own.
http://i1011.photobucket.com/albums/af237/phizzle99gst/IMG_0691_zps70dfead7.jpg |
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finally got my BCG on Wed, checked the headspace and threw it together that night. Took it out yesterday to break-in the barrel, tune the gas block and 100 yard zero with cheap rem core-lokt ammo. I shot a total of 15 rounds and my last 4 had a 7/8" group. Wasn't expecting that but was pleased with it. Either the barrel likes that ammo or it's a sign of good things to come when I start loading my own. http://i1011.photobucket.com/albums/af237/phizzle99gst/IMG_0691_zps70dfead7.jpg View Quote What gas block are you using |
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The end is finally in sight! Functional testing was oh so smooth!
CMMG LPK 308 DRD BCG 308 DPMS PATTERN NIB-X TIMNEY Trigger Solid 3lbs Rainier Arms Lo-Pro Gas Block Ergo DLX w/ Palm Shelf AR 10 Heavy Buffer & Spring Phase5 Extended Bolt Release YHM QD Brake for Suppressor Magpul PRS AR10 Stock American Defense Recon1 Scope Mount Vortex Viper PST Scope http://dimensionalfirearms.com/images/megamaten.jpg Barrel break in completed at 50 yards. http://dimensionalfirearms.com/images/maten-break-in.jpg Dimensional Firearms, LLC http://www.dimensionalfirearms.com/includes/templates/firearms/images/logo.png |
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The end is finally in sight! Functional testing was oh so smooth! http://dimensionalfirearms.com/images/megamaten.jpg View Quote Nice what's the diameter of your barrel at the gas block |
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Ok so I have bern debating over and over SCAR 17 or build a MEGA. The scar was even more tempting due to the fact I can get one for 2450$, but now I think I am set on building. I will have a gunsmith put my upper together since I don't have the tools anyone know what that should cost? Here is my part list I am thinking.
MEGA METAN upper/ambi lower Lilja 18" barrel JP enterprise low mass BCG JP silent capture buffer spring Syrac adjustable gas block Geissele SSA-E Magpul ACS-L PSA LPK Phase5 bolt catch Bravo company mod1 compensator And I think a midwest industries one piece Free float SS-series hand guard 15" Any recommendations or changes you guys can think of? |
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Here is my part list I am thinking. MEGA METAN upper/ambi lower Lilja 18" barrel JP enterprise low mass BCG JP silent capture buffer spring Syrac adjustable gas block Geissele SSA-E Magpul ACS-L PSA LPK Phase5 bolt catch -- is this needed if you're going with the Mega ambi lower? Bravo company mod1 compensator And I think a midwest industries one piece Free float SS-series hand guard 15" Any recommendations or changes you guys can think of? View Quote I would only use PSA for springs and things like that when it comes to the LPK. I'd also recommend a Battle Arms saftey selector (ambi or not) over the mil-spec saftey selector. Other than those things, the list looks solid. |
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Honestly not sure if the phase5 bolt catch is needed, I just remember reading people havering problems with the dpms 308 catch and having to mod it. What's up with PSA kit? I thought they were pretty solid.
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Honestly not sure if the phase5 bolt catch is needed, I just remember reading people havering problems with the dpms 308 catch and having to mod it. What's up with PSA kit? I thought they were pretty solid. View Quote If you buy the ambi upper/lower as a unit the bolt catch will come already installed. At least it was when I got mine at the end of 2013. Here are my components Mega MATEN Ambi upper/lower combo (included ambi bolt catch/release and take down pins and CH) Ranier Arms Select 20" SS 1:11 twist barrel Syrac Ordnance low pro adjustable gas block Troy TRX308 13.8" HP Rail(came with 3 extra short rails) Troy squid handguard covers JP Low Mass polished BCG JP Bennie Cooley Muzzle Brake JP Polished Buffer Spring (rifle length) DPMS Buffer (rifle length) Timney 3lb single stage trigger KNS non-rotating trigger pins BAD Ambi safety Norgon Ambi Mag release DPMS standard Mag release button DPMS mag release spring DPMS Buffer retainer DPMS buffer retainer spring DPMS Buffer tube(rifle length) ACE ARFX Fixed Skeleton Stock Ergo Tactical Deluxe grip Weaver offset scope mount Vortex HS-T 4-16x44 Scope w/covers Stoner63 10 round mag My BCM mod4 7.62 CH will be in the mail today! :) |
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Ok got it, some how I missed that even with the vast amount of info in the forum. Well saves me some money that I can put tithe BAD ASS safety
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Hey Guys do I use a standard mil spec buffer tube or the DPMS 308 Milspec tube. Will the JP silent capture spring fit in both?
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Hey Guys do I use a standard mil spec buffer tube or the DPMS 308 Milspec tube. Will the JP silent capture spring fit in both? View Quote You listed the Magpul ASC-L, which uses a carbine length buffer tube. So, you'll simply get a DPMS carbine length tube. Do they actually differentiate between 308 and AR-15? If so, I would assume they have identical dimensions (and possible identical part numbers). What WILL be different are the buffers, but you are using the JP SCS so you'll want to make sure you pick up the 308 version of it. I believe the JP SCS will work with both buffer tubes (carbine and rifle). I think it fits carbine length buffer tubes out of the box and requires a spacer (that should come with it) when used with rifle length buffer tubes. |
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I just noticed I think it was midway stated DPMS 308lr milspec buffer tube, I think it may be that it comes with a 308 buffer spring and weight
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Well, I'm finally getting somewhere with my MaTen build. Sorry for the lousy pic. Here it is thus far... Waiting for optics availability. Man,these things are sweet! <a href="http://s19.photobucket.com/user/Kick_it/media/8b22b1b9-8768-4611-9c08-4a017ee775d8_zps4e15619b.jpg.html" target="_blank">http://i19.photobucket.com/albums/b193/Kick_it/8b22b1b9-8768-4611-9c08-4a017ee775d8_zps4e15619b.jpg</a> View Quote Copycat Nice stick. |
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Thanks to everyone who has contributed to this thread.
https://farm3.staticflickr.com/2855/13204092454_5ae9499060_b.jpg Specs: Mega MKM Maten Extended Rifle Length Upper/Ambi lower set Rainier Arms 16" 308 Ultramatch Stainless Steel barrel Rainier Arms 7.62 Raptor Ambi Charging handle JP Enterprises 7.62 LMOS Bolt Carrier JP Enterprises 7.62 Enhanced bolt JP Enterprises AR-10 Silent Capture Spring SLR Rifleworks DA7 Adjustable gas block AAC 7.62 51T Muzzle Brake (awaiting the SDN-6) Magpul MOE+ Magpul CTR Battleline Industries SAPR Battlearms Developement 45* ambi safety Geissele SD-E Troy Ambi Mag Release Vortex 4-16x50 FFP Vortex bubble level American Defense 30mm Recon Mount Troy BUIS Atlas bipod w/ Larue QD |
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