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12/8/2025 3:43:02 PM EDT
I'm working on approximately cloning an MCS. I have a ton of parts on deck. I need a few measurements:

Length of installed 10" barrel from front of receiver to muzzle
Front edge of pic rail to front edge of receiver
Length of magazine tube from front of receiver to end of threads


Thank you for any help
12/9/2025 9:26:47 AM EDT
[#1]
Originally Posted By CKxx:
I'm working on approximately cloning an MCS. I have a ton of parts on deck. I need a few measurements:

Length of installed 10" barrel from front of receiver to muzzle
Front edge of pic rail to front edge of receiver
Length of magazine tube from front of receiver to end of threads


Thank you for any help
View Quote


MCS, there’s a name I haven’t heard in a long time. Even though it’s a pump action it is still a gun I lust after. It would be cool if there was a retro shotgun resurgence like we got with ARs. A company making various MCS parts, things like wood stocks and forends and the bayonet adapters for 870s, heat shields, duck bill chokes, out of production ghost ring sights and various barrel offerings. I bet there is some money in that.

Not trying to derail your thread, just day dreaming about the possibilities.
12/9/2025 10:57:24 AM EDT
[#2]
No problem. I agree. I think a "game changer" for the platform would be if someone made a quality dedicated die and alignment jig to thread the mag tube, and perhaps another to rethread the forend tube assy  There's still a lot more work involved, but after that it's a bit less complicated to sell and MCS-length barrel.
12/18/2025 11:39:59 AM EDT
[Last Edit: Combat_Diver][Edited] [#3]
I haven't played with a MCS since I had 3 of them in Afghanistan 10-11'.  Don't have one for measurements but I got some pics on my other laptop.  Was armed with one 14" configured one when we got attack one night by 50 tailban.  AC-130 took most out.  Only one made it into the perimeter.  Rangers took care of him.
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24&25'
Afghanistan: 09,10,11,14,17,18,19,20&21'
12/18/2025 12:54:18 PM EDT
[#4]
Son swapped his 20" Pistol Gripped Mossberg 500 for the MCS in Iraq 04'.  He was a 11C doing breaching duty with 3/8 CAV.

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As stated he set his up for breaching in Baghdad.
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De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24&25'
Afghanistan: 09,10,11,14,17,18,19,20&21'
12/18/2025 1:02:34 PM EDT
[#5]
Ones I had in Astan
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Attached File


Barrel magazine tube ring is located closer to receiver so standard barrels will not work.
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24&25'
Afghanistan: 09,10,11,14,17,18,19,20&21'
12/18/2025 1:12:38 PM EDT
[#6]
Attached File
Attached File

Attached File
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24&25'
Afghanistan: 09,10,11,14,17,18,19,20&21'
12/25/2025 2:56:16 AM EDT
[#7]
Fantastic photos! Thank you!
1/10/2026 8:35:15 PM EDT
[#8]
Originally Posted By CKxx:
I'm working on approximately cloning an MCS. I have a ton of parts on deck. I need a few measurements:

Length of installed 10" barrel from front of receiver to muzzle
Front edge of pic rail to front edge of receiver
Length of magazine tube from front of receiver to end of threads


Thank you for any help
View Quote


My MCS is the breacher SBS (model 82710).

1. I only have the externally threaded barrel so can't speak for the 10" flush barrel. On mine, threaded portion starts 9 7/16" fwd of the receiver edge.
2. Appears to be 0.230".
3. Appears to be exactly 9".
See images. Good luck!



1/29/2026 6:22:06 PM EDT
[#9]
THANK YOU!!!!!!!!

Exactly what I needed.

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