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Couple projects from Black Friday.
22" M5 rifle in 6.5CM - Criterion hybrid barrel - JP SCS buffer and FMOS HP BCG - Vortex PST-II 5-25x50 FFP So far this one is shooting under 0.5MOA with factory ammo. 12.5" M5 pistol in .308 - BA Barrel - Holosun 510C This one warms the knuckles. Attached File |
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Couple projects from Black Friday. 22" M5 rifle in 6.5CM - Criterion hybrid barrel - JP SCS buffer and FMOS HP BCG - Vortex PST-II 5-25x50 FFP So far this one is shooting under 0.5MOA with factory ammo. 12.5" M5 pistol in .308 - BA Barrel - Holosun 510C This one warms the knuckles. https://www.AR15.Com/media/mediaFiles/51421/4E91670F-90A0-427D-88C5-CA7D6DAE7E7F_jpeg-813911.JPG View Quote |
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swapped out the trigger to a triggertech flat face to match my bolt gun.Its not quite on the level of the diamond series I have in my bolt gun but its damn good. https://i.ibb.co/r0KdpW3/308.jpg View Quote CMT handguard? |
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Distant cousins... 9mm AR SBR and AR10. I don’t own a 5.56 an likely never will...
Almost finished, just waiting on BCG and CH Lower: Aero M5 stripped lower Aerom LPK minus FCG CMC 3.5# flat bow single stage UBR Gen 2 DPMS 308 buffer/spring Hogue grip Upper: Aero M5 w/12” keymod handguard SLR Sentry BA 16” CMMV KVP Linear Comp Sig backup iron sights Aero standard CH w/Badger tactical latch 2 Toolcraft Black Nitride BCG I just ordered 100 rounds of XM80C to break everything in. It’s turning into a nice battle rifle, with the potential for some glass to shoot piggies and deer. |
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What barrel nut wrench are you all using? The 3 I have do not clear the barrel
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Just finished this 6.5 CM on an 80% lower https://www.AR15.Com/media/mediaFiles/171443/48392205_10155974756216439_4206866010541654016_o-777996.jpg View Quote Moar pics! |
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What barrel nut wrench are you all using? The 3 I have do not clear the barrel View Quote But I wanted it built in the meantime & had everything already all set, parts laid out, days off scheduled & most importantly 6.5 headspaced gauges rented & already delivered. So I bought & tried the Magpul wrench. That is also a nice piece. Barrel was Aero’s original 5 lb 22” 6.5cm stainless barrel. |
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Has anyone installed the new Aero Atlas S-1 handguard? Having an issue with a barrel nut not timing.
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Has anyone installed the new Aero Atlas S-1 handguard? Having an issue with a barrel nut not timing. View Quote If you don't have the shims, call Aero and I am sure they will send some to you. |
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How have Toolcraft BCGs been in these guns?
And any love for MI rails? |
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Not all M5 uppers have that integrated barrel nut. None of mine do and I use normal handguards on them. As far as toolcraft bcg's, They are good to go. I use one right now.
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M5 = normal barrel nut configuration.
M5E1 = "enhanced" barrel nut. And they're made for BAR type handguards. |
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Lower: M5 Lower, Parts Kit, Carbine Buffer Tube Geissele SSA-E Trigger MOE Grip Battle Arms Ambi Safety Battlelink Minimalist Stock & Cobra Weave Paracord Spike Tactical Billet Mag Catch Button Upper: M5 Upper w/ Black Nitride BCG Aero 18" CMV Barrel & 15" keymod handguard Spike Tactical / Superlative Arms Adj. Gas Block Procomp 762 Muzzle Brake Radian Raptor Ambi Charging Handle Magpul Sights (for now; need to research optics) Price: ~1400 Weight ~9lbs |
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I just loaded some test ammo in my rifle (haven’t fired it yet) and the bolt is very difficult to pull back after a round is seated.
They also seem like they’re not seating all the way. I had to smack the charging handle with a 2x4 to get the BCG to come out of battery (assuming it was fully seated to begin with. Is this something that a few rounds should work out when breaking the rifle in? ETA: the rifle specs are above on this page. All Aero except the BA Barrel (who makes Aero barrels) and a Toolcraft BCG. |
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I just loaded some test ammo in my rifle (haven’t fired it yet) and the bolt is very difficult to pull back after a round is seated. They also seem like they’re not seating all the way. I had to smack the charging handle with a 2x4 to get the BCG to come out of battery (assuming it was fully seated to begin with. Is this something that a few rounds should work out when breaking the rifle in? ETA: the rifle specs are above on this page. All Aero except the BA Barrel (who makes Aero barrels) and a Toolcraft BCG. View Quote Did you confirm that your ammo is loaded to the correct OAL and that you are using the correct bullet diameters? Is the barrel stamped with the correct caliber? |
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Quoted: Should work itself out after the first round...immediately proceeding the catastrophic failure, e.g. rifle explosion. Did you confirm that your ammo is loaded to the correct OAL and that you are using the correct bullet diameters? Is the barrel stamped with the correct caliber? View Quote To answer your patronizing questions; yes, I am attempting to use the correct ammunition in the weapon, and the markings on the barrel match the label on the box. |
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Quoted: Responses like this make me question why I visit this forum, but remind me of why I have such a low post count over the past 10-Years. To answer your patronizing questions; yes, I am attempting to use the correct ammunition in the weapon, and the markings on the barrel match the label on the box. View Quote Next, I asked to make sure the barrel you installed was indeed the caliber you ordered. Since you didn't specify whether your build is a 308 or 6.5 Creedmoor (or one of several other possible calibers), another possible issue is that whomever you ordered the barrel from sent you the wrong caliber. I have ordered barrels in the past, only to receive the wrong caliber. Since I now understand that you are using factory built ammunition, I would suggest you use/purchase/borrow a 308 Winchester Go/No Go gauge. The issue you describe is not normal, and could easily cause the catastrophic failure of the rifle. Also, double check the head stamp on the round to ensure it is 308 Winchester, and not something like 308 Norma. |
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No worries.
Is the BCG from Aero? Work is they can have head spacing issues. If you have access to another bolt, you could try that in your bolt carrier as see if the issues is replicated. If it happens again with a different bolt, there may be something wrong with the barrel extension tolerances of that particular barrel. Maybe try another type of ammo? Different Manufacturer? There can be head space issues between 308 Winchester and 7.62x51, also. |
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I just loaded some test ammo in my rifle (haven’t fired it yet) and the bolt is very difficult to pull back after a round is seated. They also seem like they’re not seating all the way. I had to smack the charging handle with a 2x4 to get the BCG to come out of battery (assuming it was fully seated to begin with. Is this something that a few rounds should work out when breaking the rifle in? ETA: the rifle specs are above on this page. All Aero except the BA Barrel (who makes Aero barrels) and a Toolcraft BCG. View Quote My M5E1 6.5 Creedmoor build also has a BA barrel and BCG. What I discovered is that BA left the corners on the barrel extension lugs quite sharp, with no chamfering. And it was making the bolt bind up, and it took both hands pulling back on the CH to get it to open with a round in the chamber. It was even leaving scratches on the necks where the brass came into contact with the extension upon extraction. So I carefully took a file and took the sharp edge off of the lugs. This allowed the bolt to cycle much easier. The extension lugs still leave their mark on the brass, but not nearly as bad as before. |
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Sorry for derailing this thread...
@quietm, I will try some different ammo and see if that makes a difference (I was using XM80C originally), unfortunately I only have one bolt and no access to another. @Gone_Shootin, I’ll take a look at the extension lugs, as this sounds like the same problem I’m having. ——————- A round will fully seat in the chamber with the BCG out, and the extractor dosnt seem to be overly stiff and works fine on a round when removed from the rifle. Maybe I just need to clean/polish up some of the barrel. |
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Sorry for derailing this thread... @quietm, I will try some different ammo and see if that makes a difference (I was using XM80C originally), unfortunately I only have one bolt and no access to another. @Gone_Shootin, I’ll take a look at the extension lugs, as this sounds like the same problem I’m having. ——————- A round will fully seat in the chamber with the BCG out, and the extractor dosnt seem to be overly stiff and works fine on a round when removed from the rifle. Maybe I just need to clean/polish up some of the barrel. View Quote And you're not derailing the thread. It's an issue with a barrel that's commonly used with these builds. Folks need to know. |
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Quoted: All that other stuff aside (I'm not gonna rehash that argument above)... My M5E1 6.5 Creedmoor build also has a BA barrel and BCG. What I discovered is that BA left the corners on the barrel extension lugs quite sharp, with no chamfering. And it was making the bolt bind up, and it took both hands pulling back on the CH to get it to open with a round in the chamber. It was even leaving scratches on the necks where the brass came into contact with the extension upon extraction. So I carefully took a file and took the sharp edge off of the lugs. This allowed the bolt to cycle much easier. The extension lugs still leave their mark on the brass, but not nearly as bad as before. View Quote |
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@JoeMal, what barrel are you using?
I just opened a ticket with Ballistic Advantage’s customer service, we’ll see what they say. I’d prefer to have the manufacturer fix the issue if possible. |
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I already got a response back from BA’s Customer Service.
They told me to go ahead and send them the whole upper so they could take a look at it! |
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I already got a response back from BA's Customer Service. They told me to go ahead and send them the whole upper so they could take a look at it! View Quote I'm going to shoot mine a bit once I get it scoped and see how things go. Maybe by then you'll have a response back about what they did So you're sending the upper, rail, gas block, muzzle device, etc? |
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how do you guys like that heavy 22" BA 6.5cm barrel? I just ordered the complete upper from aero on sale. I'll swap the gas block to adj but curious about the barrel??????
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Bleh. What a pain I'm going to shoot mine a bit once I get it scoped and see how things go. Maybe by then you'll have a response back about what they did So you're sending the upper, rail, gas block, muzzle device, etc? View Quote I’m assuming it won’t take them too long to get it sorted out, and I’m pretty impressed with how quickly I got a response about this problem. |
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how do you guys like that heavy 22" BA 6.5cm barrel? I just ordered the complete upper from aero on sale. I'll swap the gas block to adj but curious about the barrel?????? View Quote They guarantee moa with match ammo. So they stand by it... Send it back if it's not accurate |
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You're confusing M5 (threaded), and the M5E1 (forged in handguard mount)
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