User Panel
Originally Posted By m1ajunkie:
What kind of accuracy are you guys seeing with your mk18? With my 10.3" DD barrel I'm getting 4 moa AT BEST with multiple different types of 55gr m193 ammo. I'd like to see that drop to the 2/ 3 moa range and to do it I'm entertaining a barrel swap but want to see if I'm even reasonable. My barrel has seen a ton of rounds and a lot of heat, it's got some kind of black carbon type build up in the first 1-2.5" of the barrel that I can't clean out. Part of me wonders if maybe it's chrome flaking causing the crappy accuracy. View Quote |
|
|
so while im waiting on my colt lower to get its ATF approved freedom ticket...
What lower would you guys put a mk18 upper on to use as a pistol? I cant find any colt lowers that arent take offs from a 6920 so now im lost. |
|
|
Originally Posted By Jormungandr:
so while im waiting on my colt lower to get its ATF approved freedom ticket... What lower would you guys put a mk18 upper on to use as a pistol? I cant find any colt lowers that arent take offs from a 6920 so now im lost. View Quote |
|
In the absence of a plan, move toward the sound of gunfire and kill everything.
One who lifts heavy weight, sets back down, then repeats. One who Colt's/FN's all the things. |
|
Originally Posted By SecretSquirell:
Take the light off of the rail and you'll find 2 screws holding the mount to the light. Remove those screws and turn the mount so the knob is facing the other direction. View Quote View All Quotes View All Quotes Originally Posted By SecretSquirell:
Originally Posted By Shogek:
It doesn't flip upwards does it? I swear I tried that before... I do have a fear sector mount but I like the flashlight inline with the rail. I guess beggars can't be choosers. |
|
|
Originally Posted By pezboytate:
They are uni-directional. View Quote View All Quotes View All Quotes Originally Posted By pezboytate:
Originally Posted By SecretSquirell:
Originally Posted By Shogek:
It doesn't flip upwards does it? I swear I tried that before... I do have a fear sector mount but I like the flashlight inline with the rail. I guess beggars can't be choosers. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. |
|
Squire
Without blood, it doesn't count! I survived ARFbortion2016 and all I got was this stupid sigline |
Originally Posted By m1ajunkie:
What kind of accuracy are you guys seeing with your mk18? With my 10.3" DD barrel I'm getting 4 moa AT BEST with multiple different types of 55gr m193 ammo. I'd like to see that drop to the 2/ 3 moa range and to do it I'm entertaining a barrel swap but want to see if I'm even reasonable. My barrel has seen a ton of rounds and a lot of heat, it's got some kind of black carbon type build up in the first 1-2.5" of the barrel that I can't clean out. Part of me wonders if maybe it's chrome flaking causing the crappy accuracy. View Quote |
|
|
Originally Posted By SecretSquirell:
You're uni-directional. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. View Quote View All Quotes View All Quotes Originally Posted By SecretSquirell:
Originally Posted By pezboytate:
Originally Posted By SecretSquirell:
Originally Posted By Shogek:
It doesn't flip upwards does it? I swear I tried that before... I do have a fear sector mount but I like the flashlight inline with the rail. I guess beggars can't be choosers. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. OP should look into LaRue, they might have an inline scout mount. |
|
|
Originally Posted By pezboytate:
Me too, IWC for the win. OP should look into LaRue, they might have an inline scout mount. View Quote View All Quotes View All Quotes Originally Posted By pezboytate:
Originally Posted By SecretSquirell:
Originally Posted By pezboytate:
Originally Posted By SecretSquirell:
Originally Posted By Shogek:
It doesn't flip upwards does it? I swear I tried that before... I do have a fear sector mount but I like the flashlight inline with the rail. I guess beggars can't be choosers. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. OP should look into LaRue, they might have an inline scout mount. |
|
Squire
Without blood, it doesn't count! I survived ARFbortion2016 and all I got was this stupid sigline |
Originally Posted By TinyCrumb:
The enlarged gas port of DD barrels causes accuracy issues. The bullet gets loose around the gas port and there's so much rifling missing where the gas port is the bullet stops spinning for a millisecond and causes it to destabilize. Since there's not much barrel left after the gas port on these 10.3" barrels it doesn't have a chance to restabilize before it leaves the barrel. Solution is to use a proper .070 gas ported barrel. View Quote View All Quotes View All Quotes Originally Posted By TinyCrumb:
Originally Posted By m1ajunkie:
What kind of accuracy are you guys seeing with your mk18? With my 10.3" DD barrel I'm getting 4 moa AT BEST with multiple different types of 55gr m193 ammo. I'd like to see that drop to the 2/ 3 moa range and to do it I'm entertaining a barrel swap but want to see if I'm even reasonable. My barrel has seen a ton of rounds and a lot of heat, it's got some kind of black carbon type build up in the first 1-2.5" of the barrel that I can't clean out. Part of me wonders if maybe it's chrome flaking causing the crappy accuracy. |
|
[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By SecretSquirell:
You're uni-directional. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. View Quote View All Quotes View All Quotes Originally Posted By SecretSquirell:
Originally Posted By pezboytate:
Originally Posted By SecretSquirell:
Originally Posted By Shogek:
It doesn't flip upwards does it? I swear I tried that before... I do have a fear sector mount but I like the flashlight inline with the rail. I guess beggars can't be choosers. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. |
|
|
Originally Posted By TinyCrumb:
The enlarged gas port of DD barrels causes accuracy issues. The bullet gets loose around the gas port and there's so much rifling missing where the gas port is the bullet stops spinning for a millisecond and causes it to destabilize. Since there's not much barrel left after the gas port on these 10.3" barrels it doesn't have a chance to restabilize before it leaves the barrel. Solution is to use a proper .070 gas ported barrel. View Quote |
|
Don't come back to Afghanistan. -Taliban, 5/31/14
http://www.flickr.com/photos/46381179@N04/ |
Originally Posted By Shogek:
Ya I took the mount off and I was like damnit why did I listen to you hahaha. I threw on my gear sector mount anyways. I just like the inline torch better. No other specific reasons View Quote View All Quotes View All Quotes Originally Posted By Shogek:
Originally Posted By SecretSquirell:
Originally Posted By pezboytate:
Originally Posted By SecretSquirell:
Originally Posted By Shogek:
It doesn't flip upwards does it? I swear I tried that before... I do have a fear sector mount but I like the flashlight inline with the rail. I guess beggars can't be choosers. I got to thinking about it for some reason today and I seem to remember the Scouts using those stupid little screws on the side and not the bigger ones on the bottom, so I don't think you can flip one. As soon as I buy one, the mount gets yanked off any way so I never even thought about it. |
|
Squire
Without blood, it doesn't count! I survived ARFbortion2016 and all I got was this stupid sigline |
In the absence of a plan, move toward the sound of gunfire and kill everything.
One who lifts heavy weight, sets back down, then repeats. One who Colt's/FN's all the things. |
|
|
Originally Posted By TinyCrumb:
The enlarged gas port of DD barrels causes accuracy issues. The bullet gets loose around the gas port and there's so much rifling missing where the gas port is the bullet stops spinning for a millisecond and causes it to destabilize. Since there's not much barrel left after the gas port on these 10.3" barrels it doesn't have a chance to restabilize before it leaves the barrel. Solution is to use a proper .070 gas ported barrel. View Quote |
|
|
Originally Posted By brodband8:
What's funny is that my buddy had returned a civi dd 10.3" barrel with an overly eroded out gas port because 75 grain bullets were keyholing and DD basically said exactly what you said. They said that after the gas port erodes on the .080+ barrels it was causing bullets to tumble. View Quote |
|
|
Originally Posted By m1ajunkie:
I am really thinking of rebarreling the rifle, this accuracy is frustrating. What 10.3" barrel would be the best option to replace with? View Quote View All Quotes View All Quotes Originally Posted By m1ajunkie:
Originally Posted By brodband8:
What's funny is that my buddy had returned a civi dd 10.3" barrel with an overly eroded out gas port because 75 grain bullets were keyholing and DD basically said exactly what you said. They said that after the gas port erodes on the .080+ barrels it was causing bullets to tumble. |
|
|
Originally Posted By m1ajunkie:
I am really thinking of rebarreling the rifle, this accuracy is frustrating. What 10.3" barrel would be the best option to replace with? View Quote stuck with either a cut-down for chf-cl, they have nitrided 10.3's with the .70 as well |
|
|
Originally Posted By MILSPEC556:
The tooth fairy brought my CQBR an ambidextrous thing. Safe, Semi..........Safe. Still badass tho and teh utmost clone correct. Stick that in your pipe and smoke it Stealthgirl http://i.imgur.com/dxWKJQ8.jpg View Quote I'm waiting for a god-tier ambi safety forged from the fires of Mt. Geissele. |
|
|
Originally Posted By StealthGuy:
Why would I want some pleb-ass, gayboi ambi safety? I'm waiting for a god-tier ambi safety forged from the fires of Mt. Geissele. View Quote View All Quotes View All Quotes Originally Posted By StealthGuy:
Originally Posted By MILSPEC556:
The tooth fairy brought my CQBR an ambidextrous thing. Safe, Semi..........Safe. Still badass tho and teh utmost clone correct. Stick that in your pipe and smoke it Stealthgirl http://i.imgur.com/dxWKJQ8.jpg I'm waiting for a god-tier ambi safety forged from the fires of Mt. Geissele. |
|
In the absence of a plan, move toward the sound of gunfire and kill everything.
One who lifts heavy weight, sets back down, then repeats. One who Colt's/FN's all the things. |
Originally Posted By MILSPEC556:
Go Geissele all your things in the possibly/might be/could be/wanna be Block 3 thread newb. We don't take kindly to your fancy Mlok rails and semi auto selectors 'round these parts. View Quote He will not divide us! He will not divide us! He will nut inside us! |
|
|
Looking for a Surefire MR07 1911 light rail adapter. PM me if you've got one!
|
Originally Posted By cjwwd2:
The Geissele (and others) are being tested. Nothing has been officially adopted. View Quote Similarly, if guys are testing G-rails, it makes them cloneworthy IMO. |
|
"I'll tell you what war is about, you've got to kill people, and when you've killed enough they stop fighting." GEN Curtis LeMay
"Someday this war's gonna end..." LTC William Kilgore |
Originally Posted By Jlgil73:
Ask and you shall receive. I followed all the Block one specs (that little chart) on the first page of this thread when building this... So I went QRP for my block 1. Only thing not clone correct as far as brand is the Noveske lower, but, viva Noveske... And, I just rattle canned it yesterday, SO I am looking for opinions on the job I did. First time rattle-canning a gun... Was a little nervous. Let me know what you guys think! Pre Rattle can: https://farm5.staticflickr.com/4328/35485939733_009cff63c0_o.jpg The big colors swaths: https://farm5.staticflickr.com/4291/35458108264_330f33409f_o.jpg Then back over it with opposing colors... https://farm5.staticflickr.com/4318/35458142694_2bea785a5c_o.jpg Then the finished product with tape removed... https://farm5.staticflickr.com/4312/35458126504_e5dd717e42_o.jpg View Quote View All Quotes View All Quotes Originally Posted By Jlgil73:
Originally Posted By CoilCrafter:
How common were QRP mounts used? Just bought the last pieces I need for my CQBR Block 1 build. Anyone have any pictures of QRP mounts on block 1's? And, I just rattle canned it yesterday, SO I am looking for opinions on the job I did. First time rattle-canning a gun... Was a little nervous. Let me know what you guys think! Pre Rattle can: https://farm5.staticflickr.com/4328/35485939733_009cff63c0_o.jpg The big colors swaths: https://farm5.staticflickr.com/4291/35458108264_330f33409f_o.jpg Then back over it with opposing colors... https://farm5.staticflickr.com/4318/35458142694_2bea785a5c_o.jpg Then the finished product with tape removed... https://farm5.staticflickr.com/4312/35458126504_e5dd717e42_o.jpg Paint job: awesome. That's my favorite protocol: two/three colors with alternating colors shot through the "bag". |
|
"I'll tell you what war is about, you've got to kill people, and when you've killed enough they stop fighting." GEN Curtis LeMay
"Someday this war's gonna end..." LTC William Kilgore |
Originally Posted By SecretSquirell:
I have a pretty old taupe that has no markings whatsoever and it is 100% legit. View Quote View All Quotes View All Quotes Originally Posted By SecretSquirell:
Originally Posted By Shoot-To-KIll:
Has anyone seen KAC sights that are unserialized? specifically a front buis in taupe (99051). I have two sights, a black and a taupe The taupe apears to be older, and slighly lower profile than the black one. The taupe has no seral number or anything on it where the black one does. Everything else looks identical down to casting marks and so forth. I found one thread where a guy said that he has had KAC sights over the years that weren't marked, and said they didn't mark all the sights that were contract. That was all about an hour of searching got me. |
|
"I'll tell you what war is about, you've got to kill people, and when you've killed enough they stop fighting." GEN Curtis LeMay
"Someday this war's gonna end..." LTC William Kilgore |
|
very long thread. I have a comment / question.
I have seen some Mk18 rifles with a thick SOCOM-like barrel, except w/o M203 notches. I have been told that later in the program, Crane changed the barrel to allow for more automatic fire, with a heavy barrel, but have not been able to substantiate this. Any thoughts? |
|
|
Originally Posted By frank4guns:
very long thread. I have a comment / question. I have seen some Mk18 rifles with a thick SOCOM-like barrel, except w/o M203 notches. I have been told that later in the program, Crane changed the barrel to allow for more automatic fire, with a heavy barrel, but have not been able to substantiate this. Any thoughts? View Quote |
|
|
I've never seen or read in SOCOMs TRS a heavy barrel for the Mk18/CQBR/URG. All have used Govt profile barrels cut to 10.3".
CD |
|
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09, 15 & 16' Afganistan: 09,10,11', & 14' |
Originally Posted By KILLERB6:
Never saw one, either color, with a S/N. View Quote View All Quotes View All Quotes Originally Posted By KILLERB6:
Originally Posted By SecretSquirell:
Originally Posted By Shoot-To-KIll:
Has anyone seen KAC sights that are unserialized? specifically a front buis in taupe (99051). I have two sights, a black and a taupe The taupe apears to be older, and slighly lower profile than the black one. The taupe has no seral number or anything on it where the black one does. Everything else looks identical down to casting marks and so forth. I found one thread where a guy said that he has had KAC sights over the years that weren't marked, and said they didn't mark all the sights that were contract. That was all about an hour of searching got me. |
|
Squire
Without blood, it doesn't count! I survived ARFbortion2016 and all I got was this stupid sigline |
Originally Posted By Jormungandr:
so while im waiting on my colt lower to get its ATF approved freedom ticket... What lower would you guys put a mk18 upper on to use as a pistol? I cant find any colt lowers that arent take offs from a 6920 so now im lost. View Quote |
|
|
Originally Posted By drago6:
i wish DD sold .70 barrels stuck with either a cut-down for chf-cl, they have nitrided 10.3's with the .70 as well View Quote |
|
|
besides extra gas to the face what are the problems with the .8 gas port barrels?
|
|
|
Originally Posted By Jormungandr:
besides extra gas to the face what are the problems with the .8 gas port barrels? View Quote |
|
Squire
Without blood, it doesn't count! I survived ARFbortion2016 and all I got was this stupid sigline |
|
makes sense.
|
|
|
[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By Jormungandr:
so while im waiting on my colt lower to get its ATF approved freedom ticket... What lower would you guys put a mk18 upper on to use as a pistol? I cant find any colt lowers that arent take offs from a 6920 so now im lost. View Quote |
|
|
Originally Posted By eodinert:
Any lower at all (that can legally be used as a pistol). It's not like a pistol is 'clone correct', so it doesn't matter. View Quote While it is not required that the lower be designated as a pistol lower, I highly recommend it. What must not happen is the use of a lower that was once a part of a rifle, carbine, etc., like many Colt parts are today. A factory fresh AR lower receiver that has never been part of a firearm can be used to build a pistol, carbine or rifle. If a lower receiver is built into and registered as a pistol first, it can be stripped down and converted into a rifle in the future. If the receiver built into a carbine or rifle first, it must always remain part of a rifle and cannot ever be used to build a pistol. |
|
|
|
Originally Posted By eodinert:
Your designation is meaningless. 1. Research the legalities of building a pistol 2. Build a pistol 3. Profit View Quote I agree that the designation is not required, but it is not meaningless. It helps you show a clear line of a clean purchase to use, and how you did not get confused with other lowers. It also is helpful to show law enforcement your design and desire. You would be correct, that it is not necessary, but I think it is helpful. My other comment was that with Colt, it is hard to know if what you are buying has not been a take-off. If you can show it, you are golden. |
|
|
Originally Posted By frank4guns:
Well, yes and no. While it is not required that the lower be designated as a pistol lower, I highly recommend it. What must not happen is the use of a lower that was once a part of a rifle, carbine, etc., like many Colt parts are today. A factory fresh AR lower receiver that has never been part of a firearm can be used to build a pistol, carbine or rifle. If a lower receiver is built into and registered as a pistol first, it can be stripped down and converted into a rifle in the future. If the receiver built into a carbine or rifle first, it must always remain part of a rifle and cannot ever be used to build a pistol. View Quote As to whether having a lower marked "pistol" is any extra protection against an uninformed LEO, I think that it would be marginal at best. If the LEO isn't swayed by you explaining it's a pistol, then showing them an ATF letter about the (assumed) brace he thinks is a stock, and still remains convinced you actually have an SBR... I'm not sure showing them an engraving that says "pistol" is going to be all that much help. Most likely their response will be, "That's nice, you still have an SBR." I suppose if it gives you peace of mind, it doesn't hurt, but if a LEO is convinced you have an SBR, I wouldn't rely on it. You're most likely going to take a ride in the back seat with or without the "pistol" designation if that is the case. |
|
|
|
Mercy sakes, you lucky bastige. All your clones (especially any Mod 0s) are about to be turned up to 11, lol.
I'd love to get into FA, I just need to stop spending all my money on smaller purchases and save for one big one :\. Either that, or... Know anyone in the market for a kidney? |
|
|
If i ever get a tranny, its gonna be an uzi.
Still clone correct |
|
What are you gonna do brother? When 72oz of Cola runs wild on you!
|
"I can make the march and make Georgia howl." W.T. Sherman
@therealmg42 |
Originally Posted By bending_rodriguez:
I was gonna wait, but I figured why not for page 900....... It has taken me 900 pages in this thread, plus the other two previous threads, but finally I bought one. BNIB, unfired, all original.... I'm 2 months into the wait. http://i67.tinypic.com/14y8fhv.jpg View Quote |
|
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.