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Quoted:
Hey guys, I've got my lower completed and picked up a match grade, 18" stainless 6.5 CM barrel from DSG when they were on sale the other day, but I'm having a hard time deciding which upper and hand guard to go with. I'm leaning toward one of the M5E1 uppers but I'm hesitant because it limits me to Aero's handguards. Can anyone talk me over the ledge? Also, does anyone make a bolt compatible with aero's upper that is better than their own? View Quote |
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Quoted:
Hey guys, I've got my lower completed and picked up a match grade, 18" stainless 6.5 CM barrel from DSG when they were on sale the other day, but I'm having a hard time deciding which upper and hand guard to go with. I'm leaning toward one of the M5E1 uppers but I'm hesitant because it limits me to Aero's handguards. Can anyone talk me over the ledge? Also, does anyone make a bolt compatible with aero's upper that is better than their own? View Quote Granite Ridge Aero Precision M5E1 .308 Enhanced Upper/Handguard Combo - Gen2 This site used to be Monmouth Reloading Aero Precision M5E1 Upper Combo – w/ Gen 2 Handguard I run the LANTAC Enhanced .308 Bolt Carrier Group. I won't say its better than an Aero BCG, but the Lantacs work in my M4E1s and the M5E1. One day I'll get to shoot suppressed with them.......just as soon as I get the King's permission. |
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Odd question. Is it normal for the ejector on Aero 308 bolts to be rounded off like this? Mine is still having intermittent issues with malfunctions and the brass dribbling out at 1 o'clock instead of the usual being ejected forcefully at 4 o'clock. Compared to every other ejector I have, including a Larue 308, and they were all squared off on the edges. https://i.imgur.com/DNTkx9X.jpg View Quote |
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Another supporter of Lantac's BCG. PM for info on how to get them for $250 shipped.
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[...] I'm leaning toward one of the M5E1 uppers but I'm hesitant because it limits me to Aero's handguards. Can anyone talk me over the ledge? View Quote View All Quotes View All Quotes Quoted:
[...] I'm leaning toward one of the M5E1 uppers but I'm hesitant because it limits me to Aero's handguards. Can anyone talk me over the ledge? Also, does anyone make a bolt compatible with aero's upper that is better than their own? |
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Demo Toolcraft BCG $100 View Quote |
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Quoted: A nice price. Just be aware that the Toolcraft .308 BCGs don't have a high pressure bolt, if that's something that's important to you. View Quote ETA: There is also a "demo" Aero Precision BCG for $170 |
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Does the Lantac BCG work with the Aero Precision M5 upper's forward assist?
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FDE M5 is best M5 View Quote BTW, what caliber is that bad girl, and what trigger did you use? |
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Quoted: Sweet! I've had a set of receivers since the beginning of January, have been buying other parts since then when I found good deals, and ordered the last of the parts yesterday. Ten more days til everything comes in, then it's show time! BTW, what caliber is that bad girl, and what trigger did you use? View Quote LaRue MBT trigger. Also uses the Armaspec SRS recoil system and SLR Sentry 7 adjustable gas block. Extremely smooth and tame shooter for a 308. The rifle outperforms the glass that's on it currently, so I'll be upgrading eventually |
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Quoted: Thanks, 18" 308 using a heavy fluted Faxon 5R match series barrel. LaRue MBT trigger. Also uses the Armaspec SRS recoil system and SLR Sentry 7 adjustable gas block. Extremely smooth and tame shooter for a 308. The rifle outperforms the glass that's on it currently, so I'll be upgrading eventually View Quote |
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Quoted: Nice! How do you like the Armaspec? I was thinking of using that myself. View Quote |
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This is my 3rd 308 AR build. The difference is very noticeable in felt recoil and just cycling smoothness, and coupled with the brake and adjustable gas block make the rifle downright pleasant to shoot... View Quote |
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Currently building a 14.5 inch 308. Using M5 matched receiver, aero m5 15 inch rail, and ballistic advantage 14.5 inch barrel. Does anyone have any recommendations for a gas block? I was trying to get something adjustable just in case it needs a little tuning.
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Quoted: Thanks, 18" 308 using a heavy fluted Faxon 5R match series barrel. LaRue MBT trigger. Also uses the Armaspec SRS recoil system and SLR Sentry 7 adjustable gas block. Extremely smooth and tame shooter for a 308. The rifle outperforms the glass that's on it currently, so I'll be upgrading eventually View Quote |
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Currently building a 14.5 inch 308. Using M5 matched receiver, aero m5 15 inch rail, and ballistic advantage 14.5 inch barrel. Does anyone have any recommendations for a gas block? I was trying to get something adjustable just in case it needs a little tuning. View Quote |
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Quoted: What kind of groups are you printing (and with what kind of ammo) with that barrel? I’m considering that barrel but there are not many user reports yet. View Quote Fortunately I can report back that it's quite accurate with what it likes so far. Haven't really tried too much 175gr stuff, but it did this with 5 rounds @100 using off the shelf 168gr FGMM. Off a bipod on the bench with a 1-6x optic. Threw the 5th shot but it should give you an idea at least of what it's capable of...I am by no means a crack shot either lol... I would imagine with better glass and a better shooter behind the trigger you could get some pretty consistent .5-.75" groups out of the barrel, I'd further be willing to bet working up a load would really allow it to shine. Can't get the video to embed, but here's a direct link to me shooting the rifle when these groups were made. You can see how soft of a shooter it is as well...the lack of recoil makes follow up shots very easy for a 308. https://www.youtube.com/watch?v=iJ30A-hzPUE 20180208_141954 by hoevito, on Flickr 3 Shot here, using the same ammo... 20180208_141958 by hoevito, on Flickr |
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Quoted: Likewise, hardly seen anyone else actually using one. Fortunately I can report back that it's quite accurate with what it likes so far. Haven't really tried too much 175gr stuff, but it did this with 5 rounds @100 using off the shelf 168gr FGMM. Off a bipod on the bench with a 1-6x optic. Threw the 5th shot but it should give you an idea at least of what it's capable of...I am by no means a crack shot either lol... I would imagine with better glass and a better shooter behind the trigger you could get some pretty consistent .5-.75" groups out of the barrel, I'd further be willing to bet working up a load would really allow it to shine. Can't get the video to embed, but here's a direct link to me shooting the rifle when these groups were made. You can see how soft of a shooter it is as well...the lack of recoil makes follow up shots very easy for a 308. https://www.youtube.com/watch?v=iJ30A-hzPUE View Quote |
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Nice shooting! And thank you for the update/info, I really appreciate it. It is a small sample size but it makes me feel much better about choosing that barrel for a precision oriented build. View Quote View All Quotes View All Quotes Quoted:
Quoted: Likewise, hardly seen anyone else actually using one. Fortunately I can report back that it's quite accurate with what it likes so far. Haven't really tried too much 175gr stuff, but it did this with 5 rounds @100 using off the shelf 168gr FGMM. Off a bipod on the bench with a 1-6x optic. Threw the 5th shot but it should give you an idea at least of what it's capable of...I am by no means a crack shot either lol... I would imagine with better glass and a better shooter behind the trigger you could get some pretty consistent .5-.75" groups out of the barrel, I'd further be willing to bet working up a load would really allow it to shine. Can't get the video to embed, but here's a direct link to me shooting the rifle when these groups were made. You can see how soft of a shooter it is as well...the lack of recoil makes follow up shots very easy for a 308. https://www.youtube.com/watch?v=iJ30A-hzPUE |
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I've got a thing for heavy fluted barrels and have a Faxon 416R pencil barrel that shoots extremely well. It was a no brainer for me.
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Thanks for letting me know! I read from numerous sources that the forward assist on Aero Precision's upper works on only a very small number of BCGs other than Aero Precision's. According to some quotes from Aero Precision's support, there's not much consensus on how the serrations on the forward assist of an AR-308 should be laid out, so Aero Precision went with it's own pattern that was designed to work only with its BCGs. I have no personal experience or expertise in this area, but compatibility here was a (small) area of concern for me.
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I wasn't sure why it wouldn't, but I never had occasion to try it before. Just did and yes it works fine. View Quote |
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Anyone know if a 6.5cm bcg will work with 308? I might end of going to 6.5 in he future but have plenty of 308 to go through.
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Sample size of one here, but mine is squared off. View Quote View All Quotes View All Quotes Quoted:
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Odd question. Is it normal for the ejector on Aero 308 bolts to be rounded off like this? Mine is still having intermittent issues with malfunctions and the brass dribbling out at 1 o'clock instead of the usual being ejected forcefully at 4 o'clock. Compared to every other ejector I have, including a Larue 308, and they were all squared off on the edges. https://i.imgur.com/DNTkx9X.jpg ETA: this is a 6.5 Creedmoor build. |
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Quoted:
Thanks for letting me know! I read from numerous sources that the forward assist on Aero Precision's upper works on only a very small number of BCGs other than Aero Precision's. According to some quotes from Aero Precision's support, there's not much consensus on how the serrations on the forward assist of an AR-308 should be laid out, so Aero Precision went with it's own pattern that was designed to work only with its BCGs. I have no personal experience or expertise in this area, but compatibility here was a (small) area of concern for me. View Quote I think as long as there were serrations on the BCG, regardless of brand, if you had the right true mil-spec FA in the upper, it would engage and provide the forward assist function. If you had the deficient FA in your upper, you could swap BCG's all day until the cows came home, and you wouldn't get sufficient engagement. This was a few years back for a short spell, all the M5 uppers I bought during that short phase had the deficient FA, easily swapped with one that worked from my AR15 parts stash. Currently, all the M5 uppers I've bought recently, like at least the last year or more, the FA is fine. I've gotten mine from Aero's online store, Brownells, Primary Arms, etc. |
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Anyone know if a 6.5cm bcg will work with 308? I might end of going to 6.5 in he future but have plenty of 308 to go through. View Quote |
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That's great to know, thanks! I just bought my M5 upper, so my fingers are crossed that my experience is consistent with yours.
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my personal experience with this Forward Assist issue, and examination of parts, is that there was an issue with a batch of forward assists that Aero had, they'd work fine in an AR15, but wouldn't engage the BCG serrations when installed in their M5 upper. I did some part swapping and side-by-side comparison at the time, it it turns out the pawl on this particular batch of forward assists, when the plunger was depressed to engage the BCG serrations, the pawl wouldn't lean over enough into the upper receiver bore to actually engage the bolt carrier serrations fully. I compared the faulty FA with one that worked in the M5, and you couldn't tilt the pawl over as much. But it worked fine in a regular AR15. I think as long as there were serrations on the BCG, regardless of brand, if you had the right true mil-spec FA in the upper, it would engage and provide the forward assist function. If you had the deficient FA in your upper, you could swap BCG's all day until the cows came home, and you wouldn't get sufficient engagement. This was a few years back for a short spell, all the M5 uppers I bought during that short phase had the deficient FA, easily swapped with one that worked from my AR15 parts stash. Currently, all the M5 uppers I've bought recently, like at least the last year or more, the FA is fine. I've gotten mine from Aero's online store, Brownells, Primary Arms, etc. View Quote |
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All the parts finally arrived over the weekend and I assembled this morning. Just waiting on the scope which should be here any time now.
Attached File Aero M5 upper/lower + pins, mag release button, and bolt catch Faxon 18" heavy fluted 416R W/ SLR Sentry 7 and VDI Jetcomp Toolcraft BCG w/ Geissele CH DPMS lower parts w/ Larue MBT-2S POF anti tilt buffer assembly SLR Solo Lite 13.5" handguard B5 furniture ADM recon mount Vortex Viper PST 2-10X44 (In route) Can't wait to get out to the range! |
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My kitchen scale only goes to 7.5lbs so I don't have an exact weight yet. I'm planning to order a scale tonight for shop use. It's actually not that heavy. If I had to guess i'd put it a little over 8 lbs unloaded w/o scope. I'm very eager to get the actual weight and will report back with the results.
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It should. When I was looking at them, the only consistent difference I saw between plain old .308 BCGs and the ones marketed for 6.5CM was that the ones for 6.5CM came with a high pressure bolt, which would be fine with .308. Some other differences were: Toolcraft also puts a stronger ejector spring in theirs, and PSA put two ejectors. My guess is that either of those wouldn't be an issue for .308. View Quote View All Quotes View All Quotes Quoted:
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Anyone know if a 6.5cm bcg will work with 308? I might end of going to 6.5 in he future but have plenty of 308 to go through. |
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Quoted: How did you get the Hiperfire trigger to fit? I have their new Competition version and the hammer is rubbing against the front wall of the M5 lower. Anyone else have trigger recommendations? I'd love this Hiperfire to fit and work, but would also consider running an ELF drop-in .308 if someone else confirms it'll fit and work. View Quote |
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My optic arrived yesterday and my new scale came today. The official weight is 10lbs 2oz with optic and an empty mag. The scopes advertised weight is 18oz so I was about a pound off with my estimate.
Attached File Attached File |
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Finally finished mine. Aero M5 receiver set, CMMG Mk3 barrel/BCG, KAC URX 3.1, SiCo Omega/ASR Brake, SLR adjustable gas block, Geissele trigger. Weighs 11 lb empty mag (no suppressor). https://s26.postimg.cc/458qillh5/D3_D25_D46-0_E04-4_CA4-_B871-7_D1_D9_CB0_FDD1.jpg View Quote |
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Odd question. Is it normal for the ejector on Aero 308 bolts to be rounded off like this? Mine is still having intermittent issues with malfunctions and the brass dribbling out at 1 o'clock instead of the usual being ejected forcefully at 4 o'clock. Compared to every other ejector I have, including a Larue 308, and they were all squared off on the edges. https://i.imgur.com/DNTkx9X.jpg View Quote Aero was great through the whole process and took their BCG back without issue. |
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what's everyone's go to for buffer and spring on midlength carbines?
ETA: I think I am going with Spike's 308 Buffer tube and spring and then a ~5.5oz buffer does that sound gtg? |
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At the range today. My LaRue MBT showed up yesterday and this is also the first time I've been able to try the gas system out (last time I forgot the Allen wrench for the SLR Sentry). I'm thinking I have a gas problem. No matter what magazine I use, the bolt usually goes past the case head and grabs it halfway up and jams (FTF), even with the gas wide open. I have a Ballistic Advantage 6.5 Creedmoor Premium Series heavy 22" barrel. I forget, have these barrels had a problem with small ports? And yes, I'm running an Aero HP Nitride bolt, so I have the proper bolt. Also, it feels just fine if I turn off the gas and cycle it by hand. Nothing is loose or obstructed as far a single can tell, but I'll have a better look in the next day or so when I have time. ETA: Here it is in it's current state: https://i.imgur.com/eJrN2zdh.jpg Aero M5E1 FDE upper & lower Aero Gen 2 Mlok handguard Aero Nitride HP bolt Ballistic Advantage premium 6.5 Creedmoor 22" Silencerco ASR brake LaRue MBT Aero LPK minus grip and trigger Aero buffer, spring and tube Luth AR Stock Magpul MOE grip Atlas bipod with ADM QD mount MI 30mm QD scope mount Vortex Viper PST II 5-25x50 EBR w/EBR 2C Mrad. Raidian Raptor CH View Quote |
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had a chance to shoot it for groups yet or just zeroing and function check? View Quote View All Quotes View All Quotes Quoted:
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At the range today. My LaRue MBT showed up yesterday and this is also the first time I've been able to try the gas system out (last time I forgot the Allen wrench for the SLR Sentry). I'm thinking I have a gas problem. No matter what magazine I use, the bolt usually goes past the case head and grabs it halfway up and jams (FTF), even with the gas wide open. I have a Ballistic Advantage 6.5 Creedmoor Premium Series heavy 22" barrel. I forget, have these barrels had a problem with small ports? And yes, I'm running an Aero HP Nitride bolt, so I have the proper bolt. Also, it feels just fine if I turn off the gas and cycle it by hand. Nothing is loose or obstructed as far a single can tell, but I'll have a better look in the next day or so when I have time. ETA: Here it is in it's current state: https://i.imgur.com/eJrN2zdh.jpg Aero M5E1 FDE upper & lower Aero Gen 2 Mlok handguard Aero Nitride HP bolt Ballistic Advantage premium 6.5 Creedmoor 22" Silencerco ASR brake LaRue MBT Aero LPK minus grip and trigger Aero buffer, spring and tube Luth AR Stock Magpul MOE grip Atlas bipod with ADM QD mount MI 30mm QD scope mount Vortex Viper PST II 5-25x50 EBR w/EBR 2C Mrad. Raidian Raptor CH The one on the right was me blowing off steam with my Ruger SR762 and some M80 ball. It just has irons right now and I was pulling the trigger as soon as I reacquired the target, as fast as it allowed. That rifle runs like a sewing machine. |
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FDE M5 is best M5 https://farm1.staticflickr.com/903/40178466680_8714d0f213_h.jpgUntitled by hoevito, on Flickr View Quote |
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20171111_123558 by Nyle Sullivan, on Flickr
All Aero except for KAK industry BCG, G SSA-E trigger, BCM CH, B5 stock, magpul grip, and SLR sentry 7 adj. gas block Sig Tango 4 6-24x in an ADM recon mount AAC SD N-6 |
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