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Mk 18 / CQBR (Page 1550 of 1573)
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Link Posted: 8/7/2023 7:03:31 PM EDT
[Last Edit: dmtsc] [#1]
Ok for Mk18 Mod 0 optics. The Wilcox with Aimpoint, the Larue Lt150 with aimpoint. What are my other options to try and source as try to find some optics as I gather parts. That are considered clone correct.
Link Posted: 8/7/2023 8:05:57 PM EDT
[#2]
I'm pretty sure the M68 (Army Comp M2) is kosher for MK18 builds.
Link Posted: 8/7/2023 10:39:44 PM EDT
[Last Edit: Mb121] [#3]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By dmtsc:
Ok for Mk18 Mod 0 optics. The Wilcox with Aimpoint, the Larue Lt150 with aimpoint. What are my other options to try and source as try to find some optics as I gather parts. That are considered clone correct.
View Quote


Eotech 553 and 552, TA01NSN ACOG w/ or w/o MRDS
Link Posted: 8/9/2023 12:59:18 PM EDT
[#4]
I'm doing a clone of the 1000 series mk18 upper from crane, im going to get the engraving done on the side, did crane use colt cage code uppers on those, or were they all 'c' marked?
Link Posted: 8/9/2023 2:50:25 PM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By steven-223:
I'm doing a clone of the 1000 series mk18 upper from crane, im going to get the engraving done on the side, did crane use colt cage code uppers on those, or were they all 'c' marked?
View Quote


Not just colt, FN uppers also.
Link Posted: 8/9/2023 3:21:38 PM EDT
[#6]
I’ve only seen them with Colt C stamped Keyhole or FN Square forge uppers.
Link Posted: 8/9/2023 4:12:22 PM EDT
[#7]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By steven-223:
I'm doing a clone of the 1000 series mk18 upper from crane, im going to get the engraving done on the side, did crane use colt cage code uppers on those, or were they all 'c' marked?
View Quote

Any USGI uppers in the system at the time.  Most of those 1000 series were built before the Cage Code were a thing.  Now I do have FN and Colt cage code uppers to rebuild but they lack the 1000 series.
Link Posted: 8/9/2023 6:31:23 PM EDT
[#8]
Ok , thanks CD! Now off to find two new Uppers lol. As far as FN i've seen some what claimed surplus 1000 uppers that were FN floating around online does anyone know if the current FN uppers you can buy new from like Primary Arms have the correct markings the stock photos wasn't that great and I don't know much about FN uppers.
Link Posted: 8/10/2023 9:56:58 PM EDT
[#9]
Is 20208 the correct p/n for the mk18.0 knights FF ras? If not what is?
Link Posted: 8/10/2023 10:00:59 PM EDT
[#10]
20011
Link Posted: 8/10/2023 10:37:03 PM EDT
[#11]
Link Posted: 8/11/2023 10:17:50 AM EDT
[Last Edit: bimmertech87] [#12]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By StealthGuy:
20011
View Quote

Respectfully you sure on that, I had the 20208 saved in my phone but not sure where I saved it from. I googled the 20011 and it list as the carbine too long and may need a low pro gas block. The 20208 listed on operation parts says for mk18 ff ras. I know part descriptions can be wrong and I just want to make sure I grab the right one since they are so hard to come by.

Thanks for the help.
Link Posted: 8/11/2023 10:32:48 AM EDT
[#13]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bimmertech87:

Respectfully you sure on that, I had the 20208 saved in my phone but not sure where I saved it from. I googled the 20011 and it list as the carbine too long and may need a low pro gas block. The 20208 listed on operation parts says for mk18 ff ras. I know part descriptions can be wrong and I just want to make sure I grab the right one since they are so hard to come by.

Thanks for the help.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bimmertech87:
Originally Posted By StealthGuy:
20011

Respectfully you sure on that, I had the 20208 saved in my phone but not sure where I saved it from. I googled the 20011 and it list as the carbine too long and may need a low pro gas block. The 20208 listed on operation parts says for mk18 ff ras. I know part descriptions can be wrong and I just want to make sure I grab the right one since they are so hard to come by.

Thanks for the help.


20208 is standard carbine length
Link Posted: 8/11/2023 6:13:45 PM EDT
[Last Edit: bimmertech87] [#14]
So for the mentally impaired I need a 20??? For a 18.0?
Link Posted: 8/11/2023 10:56:08 PM EDT
[Last Edit: HipSh0T] [#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bimmertech87:
So for the mentally impaired I need a 20??? For a 18.0?
View Quote


If your cloning a Mk18 Mod 0 and have your heart set on the FF RAS instead of the drop in RAS, the P/N - 20208 is the one you'll want because it's standard carbine length and won't have clearance issues with your FSB.
Link Posted: 8/12/2023 8:01:05 AM EDT
[#16]
Mk 18 Mod 0 with KAC RIS and RAS handguards also NT4 FHs. Inspected 5 all with M4A1 lowers. No Crane logos
Attachment Attached File

Attachment Attached File
Link Posted: 8/12/2023 11:26:33 AM EDT
[#17]
Nice! Im assuming those were made later? Did any of the original Crane engraved Mod 0's come with RAS rails or just RIS
Link Posted: 8/12/2023 11:51:09 AM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By steven-223:
Nice! Im assuming those were made later? Did any of the original Crane engraved Mod 0's come with RAS rails or just RIS
View Quote

Either as Mk18 came out after RAS was adopted I believe.  RIS came out with Block I in 95' and only used for a few years before being replaced by the RAS.
Link Posted: 8/14/2023 12:44:16 AM EDT
[#19]
Regarding the KAC 300m rear sight on a Block II - big knob or small knob?
Link Posted: 8/14/2023 1:40:28 AM EDT
[#20]
Originally Posted By bimmertech87:

Respectfully you sure on that, I had the 20208 saved in my phone but not sure where I saved it from. I googled the 20011 and it list as the carbine too long and may need a low pro gas block. The 20208 listed on operation parts says for mk18 ff ras. I know part descriptions can be wrong and I just want to make sure I grab the right one since they are so hard to come by.

Thanks for the help.
View Quote




This is a carbine length
Link Posted: 8/14/2023 4:27:43 AM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By officerX:
Regarding the KAC 300m rear sight on a Block II - big knob or small knob?
View Quote

BlockII could be either.  Majority were KAC 600m or MaTech BUIS
Link Posted: 8/14/2023 11:28:34 AM EDT
[#22]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Combat_Diver:

BlockII could be either.  Majority were KAC 600m or MaTech BUIS
View Quote

600m meaning the 200-600m micro?  I was going off of the chart in the first post that said:  "MATECH, KAC 300m, & others".  Obviously the 200-600m would fall under "others" but I figured it would have been mentioned specifically.
Link Posted: 8/14/2023 1:30:32 PM EDT
[Last Edit: Combat_Diver] [#23]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By officerX:

600m meaning the 200-600m micro?  I was going off of the chart in the first post that said:  "MATECH, KAC 300m, & others".  Obviously the 200-600m would fall under "others" but I figured it would have been mentioned specifically.
View Quote

No, full size KAC 600m not Micro.  Believe MARSOC bought the 600m Micros.  Majority ie 98% are going to be KAC 600m full size or MaTech for USASOC (SF/Rangers) and SEALs.  Very few 300m actively around.  
Link Posted: 8/16/2023 10:22:11 AM EDT
[Last Edit: dmtsc] [#24]
Just curious if the PRI aimpoint mount was ever used on Mod0?


Link Posted: 8/16/2023 2:43:51 PM EDT
[#25]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By dmtsc:
Ok for Mk18 Mod 0 optics. The Wilcox with Aimpoint, the Larue Lt150 with aimpoint. What are my other options to try and source as try to find some optics as I gather parts. That are considered clone correct.
View Quote


An LMT L8A rear sight.
Link Posted: 8/17/2023 8:31:58 AM EDT
[#26]
Link Posted: 8/17/2023 8:04:12 PM EDT
[#27]
Can anyone ID the optic?



Also, can anyone tell what riser on the xps?



Link Posted: 8/17/2023 8:12:14 PM EDT
[Last Edit: SecretSquirell] [#28]
Strike Eagle 1-6 or 1-8
Link Posted: 8/17/2023 10:13:19 PM EDT
[#29]
Discussion ForumsJump to Quoted PostQuote History

Thanks for sharing that’s a great looking upper, I have a 20208 on the way so we’ll see how it turns out. Unfortunately it’s not a vero though.

My next question is using a tear drop f/a cringe and overplayed or kosher?
Link Posted: 8/18/2023 7:43:12 AM EDT
[Last Edit: Combat_Diver] [#30]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bimmertech87:

Thanks for sharing that’s a great looking upper, I have a 20208 on the way so we’ll see how it turns out. Unfortunately it’s not a vero though.

My next question is using a tear drop f/a cringe and overplayed or kosher?
View Quote

Tear drop FA are acceptable.  Not something you see everyday but once a year.
Some were still on M16A1 lowers on first batch of Crane Mk18 Mod 0 and I've seen a few on URGs/Mk18 Mod 1s down range.  Still have one in my spare parts bin in Iraq.
Link Posted: 8/21/2023 10:05:23 PM EDT
[#31]
that strike eagle in larue mount is the mk18 ive been cloning this week and last. its been on my want to build list for about 4 or 5 years now and building 2 of them all at once first time out.

i ran into a problem this evening trying to mount a surefire blast warden on the end of one. came in mail today and ive never actually owned one until now. its extremely crooked when tightened down. anyone know why that might be?

should i wait for the older 3 prong socom hider or return the warden maybe? heres some more info from the trouble shooting thread i just posted that may help identify the problem. begin copy paste...

found one of the new surefire socom series brakes thats patterned off of the a2 brake called an sfa2. its listed as socom series which is required to mount the blast warden. upon taking both items out of package today and mounting in lathe to check if alligned i found that the colt mk18 barrel is good, the sfa2 is good and warden is a no go.

ive tried to mount it straight and its a very sloppy fit and when tightened down sits so off center that you can see its crooked from afar off and it appears that rounds may impact the middle front hole on the blast warden. any advice here how to properly mount this?

although the brake is spinning concentric in lathe it could be undersized on external dimensions so brake shaft size is .905 and inside shaft size of warden that it mates to is a much bigger .915 in case that helps. thanks.

Link Posted: 8/21/2023 10:16:55 PM EDT
[#32]
I'm going to assume you have the notch lined up, correct? Is the collar screwed all the way open before installation?
Link Posted: 8/22/2023 1:43:59 AM EDT
[#33]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:
I'm going to assume you have the notch lined up, correct? Is the collar screwed all the way open before installation?
View Quote

yes i lined the notch up and opened the ratchett mech wide open then closed back and forth alot. read the instructions in the box on warden but not the brake.

my guess is maybe the size i got is completely off some how. im kinda into surefire lights collecting and have had a couple bad products lately so im not sure if quality of certain items they sell has gone way down or what the deal is.

i think its maybe the fitment size on either the brake or warden is way off but i have little info to go on without asking you guys what it might be.
Link Posted: 8/22/2023 2:14:51 PM EDT
[Last Edit: HipSh0T] [#34]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AK47_COMMBLOC:

yes i lined the notch up and opened the ratchett mech wide open then closed back and forth alot. read the instructions in the box on warden but not the brake.

my guess is maybe the size i got is completely off some how. im kinda into surefire lights collecting and have had a couple bad products lately so im not sure if quality of certain items they sell has gone way down or what the deal is.

i think its maybe the fitment size on either the brake or warden is way off but i have little info to go on without asking you guys what it might be.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AK47_COMMBLOC:
Originally Posted By SecretSquirell:
I'm going to assume you have the notch lined up, correct? Is the collar screwed all the way open before installation?

yes i lined the notch up and opened the ratchett mech wide open then closed back and forth alot. read the instructions in the box on warden but not the brake.

my guess is maybe the size i got is completely off some how. im kinda into surefire lights collecting and have had a couple bad products lately so im not sure if quality of certain items they sell has gone way down or what the deal is.

i think its maybe the fitment size on either the brake or warden is way off but i have little info to go on without asking you guys what it might be.


How about a picture? Being worth 1000 words and all that might help someone nail the issue....
Link Posted: 8/22/2023 2:20:55 PM EDT
[#35]
Colt 07/05 dated bbl. Has little bit life still in her
Attachment Attached File
Link Posted: 8/22/2023 3:00:09 PM EDT
[#36]
With the updates over the years, what is the current round count based service life of the MK 18?  


Link Posted: 8/22/2023 4:19:02 PM EDT
[#37]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Combat_Diver:
Mk 18 Mod 0 with KAC RIS and RAS handguards also NT4 FHs. Inspected 5 all with M4A1 lowers. No Crane logos
https://www.ar15.com/media/mediaFiles/32677/B66C690E-4D66-4255-8F79-8B68107B6DAA_jpe-2916825.JPG
https://www.ar15.com/media/mediaFiles/32677/74DDCA43-0DDA-4C5E-BE6E-1F9A441C4D8F_jpe-2916826.JPG
View Quote


CD, are these mod 0s still being used by the US mil currently?
Link Posted: 8/22/2023 6:49:56 PM EDT
[#38]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By HipSh0T:


How about a picture? Being worth 1000 words and all that might help someone nail the issue....
View Quote

pics are not easy to load on this site not sure why so different. unless things have changed. the off center cant is substantial. which pics did you need? i was really hoping it was something obvious someone else has ran into.
Link Posted: 8/22/2023 6:58:45 PM EDT
[#39]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AK47_COMMBLOC:

pics are not easy to load on this site not sure why so different. unless things have changed. the off center cant is substantial. which pics did you need? i was really hoping it was something obvious someone else has ran into.
View Quote


You're a Team Member.  Pics should be easy to load.  Profile>My Media>Upload Files.
Link Posted: 8/22/2023 11:17:30 PM EDT
[#40]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Engineer5:


You're a Team Member.  Pics should be easy to load.  Profile>My Media>Upload Files.
View Quote

everyone still using photobucket? hows it work? tried years ago and wasnt easy like akforum so i didnt.
Link Posted: 8/22/2023 11:18:14 PM EDT
[#41]
i have some surplus surefire hiders marked fh556 -212a but they have knicks and burrs and paint on them. if i clean them up will those measure same as socom series and tell me if socom hider or warden is likely wrong size?
Link Posted: 8/23/2023 12:42:55 AM EDT
[#42]
No. Those won't interchange with the SOCOM series.
Link Posted: 8/23/2023 1:28:45 AM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By sawgunner73:


CD, are these mod 0s still being used by the US mil currently?
View Quote

Yes
Link Posted: 8/23/2023 6:26:36 AM EDT
[#44]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AK47_COMMBLOC:

everyone still using photobucket? hows it work? tried years ago and wasnt easy like akforum so i didnt.
View Quote


You can upload straight from your computer, phone etc.  No need for a hosting site.
Link Posted: 8/23/2023 2:13:17 PM EDT
[Last Edit: Dyzastr] [#45]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:
Can anyone ID the optic?

https://i.imgur.com/9NIwkwc.jpg

Also, can anyone tell what riser on the xps?

https://i.imgur.com/0miq2xO.jpg

View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:
Can anyone ID the optic?

https://i.imgur.com/9NIwkwc.jpg

Also, can anyone tell what riser on the xps?

https://i.imgur.com/0miq2xO.jpg

Not sure on the top pic, but the riser on the bottom pic is the Larue lt110

Edit- it's not the Larue lt110. I'm so used to seeing that one used that I assumed before zooming in. No idea what's under that optic.


Very nicely done! Did you get the rail from the EE? No real way to tell but I'm curious if it's the one I sold a few years back?
Link Posted: 8/23/2023 2:22:42 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Eyekahn:
Can anyone ID the optic?

https://i.imgur.com/9NIwkwc.jpg

Also, can anyone tell what riser on the xps?

https://i.imgur.com/0miq2xO.jpg

View Quote

I think it’s the riser that comes with the SU-233 light kit.  



I think it’s just oriented opposite of this one:



I think that rifle might belong to @lsujon
Link Posted: 8/23/2023 2:23:26 PM EDT
[#47]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AK47_COMMBLOC:

pics are not easy to load on this site not sure why so different. unless things have changed. the off center cant is substantial. which pics did you need? i was really hoping it was something obvious someone else has ran into.
View Quote
When you hit "reply" at the bottom there are options for loading photos if you have a membership.
Link Posted: 8/23/2023 2:24:33 PM EDT
[#48]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Subpar:

I think it's the riser that comes with the SU-233 light kit.  

https://www.ar15.com/media/mediaFiles/147863/FDF1DB30-5C6C-4F69-8351-70286C5A75FC-2929472.jpg

I think it's just oriented opposite of this one:

https://www.ar15.com/media/mediaFiles/147863/00A14D23-B71E-48DD-949B-9537C18237FD-2929473.jpg

I think that rifle might belong to @lsujon
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Subpar:
Originally Posted By Eyekahn:
Can anyone ID the optic?

https://i.imgur.com/9NIwkwc.jpg

Also, can anyone tell what riser on the xps?

https://i.imgur.com/0miq2xO.jpg


I think it's the riser that comes with the SU-233 light kit.  

https://www.ar15.com/media/mediaFiles/147863/FDF1DB30-5C6C-4F69-8351-70286C5A75FC-2929472.jpg

I think it's just oriented opposite of this one:

https://www.ar15.com/media/mediaFiles/147863/00A14D23-B71E-48DD-949B-9537C18237FD-2929473.jpg

I think that rifle might belong to @lsujon
Yea, that one would be my best guess.
Link Posted: 8/23/2023 3:27:57 PM EDT
[#49]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Subpar:

I think it's the riser that comes with the SU-233 light kit.  

https://www.ar15.com/media/mediaFiles/147863/FDF1DB30-5C6C-4F69-8351-70286C5A75FC-2929472.jpg

I think it's just oriented opposite of this one:

https://www.ar15.com/media/mediaFiles/147863/00A14D23-B71E-48DD-949B-9537C18237FD-2929473.jpg

I think that rifle might belong to @lsujon
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Subpar:
Originally Posted By Eyekahn:
Can anyone ID the optic?

https://i.imgur.com/9NIwkwc.jpg

Also, can anyone tell what riser on the xps?

https://i.imgur.com/0miq2xO.jpg


I think it's the riser that comes with the SU-233 light kit.  

https://www.ar15.com/media/mediaFiles/147863/FDF1DB30-5C6C-4F69-8351-70286C5A75FC-2929472.jpg

I think it's just oriented opposite of this one:

https://www.ar15.com/media/mediaFiles/147863/00A14D23-B71E-48DD-949B-9537C18237FD-2929473.jpg

I think that rifle might belong to @lsujon
Yeah I miss that rifle. You have to be careful mounting the EXPS3-0 onto those as the QD latch can get the optic stuck on the rail section.

Attachment Attached File

Link Posted: 8/23/2023 3:38:27 PM EDT
[#50]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LsuJon:
Yeah I miss that rifle. You have to be careful mounting the EXPS3-0 onto those as the QD latch can get the optic stuck on the rail section.

https://www.ar15.com/media/mediaFiles/316069/IMG_1564_jpeg-2929522.JPG
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LsuJon:
Originally Posted By Subpar:
Originally Posted By Eyekahn:
Can anyone ID the optic?

https://i.imgur.com/9NIwkwc.jpg

Also, can anyone tell what riser on the xps?

https://i.imgur.com/0miq2xO.jpg


I think it's the riser that comes with the SU-233 light kit.  

https://www.ar15.com/media/mediaFiles/147863/FDF1DB30-5C6C-4F69-8351-70286C5A75FC-2929472.jpg

I think it's just oriented opposite of this one:

https://www.ar15.com/media/mediaFiles/147863/00A14D23-B71E-48DD-949B-9537C18237FD-2929473.jpg

I think that rifle might belong to @lsujon
Yeah I miss that rifle. You have to be careful mounting the EXPS3-0 onto those as the QD latch can get the optic stuck on the rail section.

https://www.ar15.com/media/mediaFiles/316069/IMG_1564_jpeg-2929522.JPG



Good info. Thanks guys. Kinda dig that with the xps. Though a micro makes it much lighter.
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Mk 18 / CQBR (Page 1550 of 1573)
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