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Posted: 11/22/2014 5:32:54 PM EDT
[#1]
I can't comment on that particular barrel but I've got several Green Mountain barrels and their excellent.
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Posted: 11/23/2014 11:52:03 AM EDT
[#2]
Well, hell - it's only money. $99 for a chrome lined barrel from a decent manufacturer, I'm in.
http://www.gmriflebarrel.com/gm-m23-5-56mm-7-5-barrel-with-ext/# I want to keep this build inexpensive, I'll be doing a lot of EE and sale deal shopping. I'm thinking it will be: * GM 7.5" chrome lined barrel (have) * KAK Flash Can (have) * Anderson integral triggerguard lower and A3 upper (have) * BCM Mod 5 CH (have) * AIM BCG (have) * Thordsen RE, cover and CAA saddle kit (have) Ended up with a RRA RE and IWC QD end plate * ALG EMR Keymod 8" (have) * Magpul K2 PG (have) * HK diopter sights from RTG (have) * Possibly a cheap Primary Arms Micro RDS Skipping a RDS for now Fun stuff! Edit - updated with final build list |
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Posted: 11/23/2014 12:10:13 PM EDT
[#3]
I'm thinking I'd like an adjustable gas block on this to allow tuning. Are there any very low profile adjustable setscrew attached (not pinned) GBs out there?
Figured it out. The lower is on order now, too. |
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Posted: 11/25/2014 3:11:57 PM EDT
[#4]
I'm looking for rail and flash can ideas.
I'd like to use a conical cavity flash can like the MAS Defense normal or slim model, and I'm thinking about partially burying it in a rail. Not a quad, but something like an ALG EMR or the MI Gen2-SS I mentioned above. I'd prefer it to be M-LOK. I also don't want the can to be fully buried, I'd like it to protrude an inch or so - I'll be running a handstop but would still like some space between the ball 'o flame and my fingers. ALG just confirmed that 8" EMRs aren't in the works, so my first choice is dead. 10" is too long for what I have in mind, 8" would be ideal or just possibly a 9". Any suggestions? I'm getting ideas from the pic thread, but it's like trying to drink out of a firehose - plus many people don't post build lists. (ETA) Maybe a 9" Troy Alpha? |
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Posted: 11/25/2014 3:48:21 PM EDT
[#5]
Here - user postban's 10.5" build is almost exactly what I have in mind, but with a 7.5" barrel. Here is his pic from the big pic thread, I hope he doesn't mind:
He's using a 12" EMR with a 10.5" barrel and a KAK flash can. |
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Posted: 11/25/2014 4:11:13 PM EDT
[#6]
The UTG Pro super slim comes in a 9" version: https://www.primaryarms.com/UTG_Pro_4_15_Super_Slim_Free_Float_Rail_Mid_Leng_p/mtu004ss.htm
You'll probably need the slimmer version of the KAK flash can to fit underneath it. I have the 7" version on my .22 pistol: 
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Posted: 11/25/2014 4:44:56 PM EDT
[#7]
I know that UTG rail is made in the USA, but something about using it makes my toes curl, and not in a good way.
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Posted: 11/25/2014 4:47:13 PM EDT
[#8]
Quote HistoryQuoted:
Well, hell - it's only money. $99 for a chrome lined barrel from a decent manufacturer, I'm in. http://www.gmriflebarrel.com/gm-m23-5-56mm-7-5-barrel-with-ext/# I want to keep this build inexpensive, I'll be doing a lot of EE and sale deal shopping. I'm thinking it will be: * GM 7.5" chrome lined barrel with a MAS Defense Flash Can * Inexpensive lower, flattop upper and BCG * Thordsen RE, cover and CAA saddle kit * 7" MI Gen2-SS HG unless I find a deal on something similar * Magpul K2 PG * Centurion diopter sights, if I can find another set * Possibly a cheap Primary Arms Micro RDS Fun stuff! soo basically this....  but with thordsen instead of sig brace
eta check out the kinitech muzzle device you get a flash hider or brake with a cover sits basically a get both scenario. It works awesome. |
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Posted: 11/25/2014 4:48:28 PM EDT
[#9]
double tap
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Posted: 11/25/2014 5:16:10 PM EDT
[#10]
i bought the gm 7.5 from classis $80. haven done anything with it yet but it seems like a nice barrel.
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Posted: 11/25/2014 5:29:19 PM EDT
[#11]
Quote HistoryQuoted:
I know that UTG rail is made in the USA, but something about using it makes my toes curl, and not in a good way. i agree. i took the bait this weekend though. i just needed a rail to finish my latest AR build. was going for a troy 12-13 inch, but they were waayyyyyyy overpriced. i stumbled across a 13 inch utg pro and said the hell with it and bought it. got it for $106. it blew me away, i really like it. very tight fit, sturdy, and a breeze to mount. we'll see how it holds up. so far, i'd def recommend one. i was planning to spend around $200 on a troy, but i used that extra money to buy a 10.5" stainless barrel for a pistol build (maybe an SBR if i decide to buy the stamp) |
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Posted: 11/25/2014 6:58:08 PM EDT
[#12]
Quote HistoryQuoted:
soo basically this.... but with thordsen instead of sig brace
Yep - pretty much! 
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Posted: 11/25/2014 8:23:15 PM EDT
[#13]
I use an M.I. 9" Gen ll SS with a Noveske Pig. The Pig sticks out about 1.5"
However, using a slim rail in a KeyMod you would need the Noveske KX5 or if just wanting a slim flash can, the KAK fits well. I will say this about the KAK. I have one mounted on a Taccom Ultra Light barrel and it strings shots. Taccom had the same results with .22 and 300 BLK. We don't really have a reason for it. Dave N |
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Posted: 11/25/2014 9:07:30 PM EDT
[#14]
I have a GM barrel waiting to be built into something, so I can't speak for it's performance. But I do have a Mas Defense 7.5 barrel under an MI Slim rail with the KAK slim can. Looks very similart to Castiel's pic above. Oh, and the KAK slim can on a 7.5 barrel is a blast!
Also, don't fear the UTG Pro stuff. I have 2, happy if not happier with them over Troy and MI if only because they are just as solid if not more, but also cheaper. I will be buying more UTG Pro handguards. ETA, found a pic. She's sporting an AGG2 on that short rail section that I didn't have when these pics were taken 
From the business end 
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Posted: 11/26/2014 11:17:38 AM EDT
[#15]
ive got the GM 7.5 on mine and so far i like it, got prolly 10rds through it and no malfunctions yet.
i swapped the kaw valley out for the twisted port kinetitech but havent shot it yet with it 
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Posted: 11/26/2014 1:39:17 PM EDT
[#16]
Quote HistoryQuoted:
I use an M.I. 9" Gen ll SS with a Noveske Pig. The Pig sticks out about 1.5" However, using a slim rail in a KeyMod you would need the Noveske KX5 or if just wanting a slim flash can, the KAK fits well. I will say this about the KAK. I have one mounted on a Taccom Ultra Light barrel and it strings shots. Taccom had the same results with .22 and 300 BLK. We don't really have a reason for it. Dave N Quote HistoryQuoted:
I use an M.I. 9" Gen ll SS with a Noveske Pig. The Pig sticks out about 1.5" However, using a slim rail in a KeyMod you would need the Noveske KX5 or if just wanting a slim flash can, the KAK fits well. I will say this about the KAK. I have one mounted on a Taccom Ultra Light barrel and it strings shots. Taccom had the same results with .22 and 300 BLK. We don't really have a reason for it. Dave N The KAK cavity is square bottomed, right? That's one of the reasons I'm leaning MAS Defense, or even possibly a Noveske. Quoted:
ive got the GM 7.5 on mine and so far i like it, got prolly 10rds through it and no malfunctions yet. I assume you meant about 100 rounds? That Kineti-tech brake and shield looks interesting - I'll have to read up on them. |
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Posted: 11/26/2014 3:06:13 PM EDT
[#17]
Quote HistoryQuoted:
i bought the gm 7.5 from classis $80. haven done anything with it yet but it seems like a nice barrel. Classic Arms? How do you know those are Green Mountain? I'm almost certain those are Bear Creek Arsenal. Classic started selling a lot of BCA parts and on BCAs web site it shows barrel just like classic is selling. |
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Posted: 11/26/2014 3:18:10 PM EDT
[#18]
ya sorry 100 busy day at work everyones freaking out bringing there cars in for recalls before thanksgiving travle lol
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Posted: 11/26/2014 3:56:12 PM EDT
[#19]
I run a KAK slimline flashcan under a UTG super slim in 9" and an 8" 300 blk barrel.
I got the flash can from joeboboutfitters for 29.99. Looks the same as the one at MAS but cheaper. My 2 cents JBL |
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Posted: 11/28/2014 1:28:24 AM EDT
[#20]
OK, the rail is done - I grabbed one of the ALG Keymod 8"ers that is on special. Now to confirm if a KX-3 or a MAS Defense device fits - the hardware for the front sight rail might force me into a KX-5 sized device.
I gotta slow down a little - too much money going out this week! |
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Posted: 11/29/2014 2:37:17 PM EDT
[#21]
Hi, everyone. I have had an AR for quite a while, but really just got into the builds. I only recently learned about the Sig Brace, and decided that I must build a pistol, which never interested me before. So, I have my receiver set, my brace, and I ordered my 7.5 Green Mountain barrel yesterday. I was back and forth on the 1/7, but I checked Sig's site, and they are using a 1/7 on theirs, so I figured it should be good to go. Anyhow, my intent is to use a QMS trigger, the gen 2 Kak tube, and probably the 9" UTG Pro Super Slim with a Kak slim flash can. Any better ideas? I did see a pretty nice thin freefloat handguard on ebay that was supposed to be US made, and a great price, but I have seen the UTG in person, and have heard that the mounting is solid, while I really don't know about the other.
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Posted: 11/29/2014 7:28:11 PM EDT
[#22]
Hi, Jimmie - the 8" ALG handguard on sale this weekend at Geisselle is a hard deal to beat, only $100 shipped including the front sight rail.
Edit - spelling |
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Posted: 11/30/2014 1:59:18 PM EDT
[#23]
Thanks, Heavyduty, I will go give it a look!
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Posted: 12/8/2014 9:28:41 PM EDT
[#24]
Gratuitous pic of the 11.5" build:
Now that it's done I'm focusing on the 7.5". I'm starting to think a PDW vibe could be fun but as a pistol with the LAW hinge instead of an SBR with a buttstock. I know I said no folder before, but... |
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Posted: 12/13/2014 1:28:47 PM EDT
[#25]
The rail and sights arrived yesterday so I was able to to a finger tight dry run of the 7.5" upper. Here it is on my 11.5" pistol's lower:
I have another Anderson integrated TG lower that I'll be dedicating to the 7.5", it will have a RRA pistol RE that just arrived yesterday and an Exile RE cover. I'd like to keep the door open to adding a LAW folder kit to the 7.5" for a PDW-like build. |
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Posted: 12/21/2014 1:51:32 PM EDT
[#26]
Done!
I do have a foam RE cover on hand but want to see how I like it bare first. I'm not going to be shouldering it, I've found I do just fine with cheekweld and sling tension. |
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Posted: 12/24/2014 5:04:46 PM EDT
[#27]
I finally got it to the range today for sighting in. I put about 125 rounds through it with zero malfs, accuracy was better than I can shoot irons in low light (indoor range.) I popped in a BCM extractor spring, insert and donut before I went and ran an H2 buffer. I can't say where it was ejecting because I was shooting alone in a booth.
I also learned you shouldn't shoot NTCH when you aren't using a stock.
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