Remington 870 MCS Build and Where to Get the Forend for Sale?

Received question from one of the Remington 870 owners which building LEO 870 – where to find the Remington 870 MCS forend for sale? Used or new.

Remington 870 MCS forend,
Remington 870 MCS forend,

I was able to find it on Remington website.

with Parts Price List (pdf). Searched inside and found following forend:

So you also need Remington Forend Tube Assembly designed specially for MCS.

How to Build Remington 870 MCS, Parts List

codyphillips48 decided to build an 870 and posted interesting information and pictures about future build on Remington 870 Forum:

So I figured I should start a thread other than my intro thread to cover the build. So my plans with this build is pretty simple. I’m going to make my take of the 870 MCS. I’ll call it the 870 CMS (Cody’s Modular Shotgun) haha. Why would I want to do something like that its simply because I can. I like the idea of having everything in one case. A grab and go kind of pack. Also please remember I’m in Brasil right now until June 18th. So I cant take any pics. Only pic I can put up is ones my brother sends me. I have a wanted ad up for parts like looking for if your looking to sell parts.

Parts list
1. 870 Receiver
2. 870 Police parts kit
3. Any springs or replacement parts for any broken parts found
4. SOE single point sling
5. Form 1
6. Top Folding Remington Stock (just for fun)
7. 26” or 28” rem Choke Vent Barrel
8. 23” cantilever Rifled Barrel and scope
9. 14” Barrel mod choke
10. 12” breaching barrel (not needed right away or at all lol)
11. +1 +2 +3 Mag tube Ext and springs
12. Chokes
13. Pelican Case (prob model 1700)
14. Side Saddle Shotgun Cards type
15. Flash light and mount
16. Salvo 12 Suppressor

Remington 870,Build, Parts
Remington 870,Build, Parts
Remington 870 Parts, Trigger Group, Bolt
Remington 870 Parts, Trigger Group, Bolt
Remington 870 Parts
Remington 870 Parts

Join Remington 870 Forum to discuss build or ask any questions.

NEWS: Pentagon Orders more Remington 870 MCS shotguns for U.S. Air Force

“The U.S. Army Contracting Command-New Jersey, on behalf of PM Soldier Weapons, intends to solicit, negotiate and award a sole source contract to Remington Arms”

“This contemplated sole source contract will include the procurement of the following items:
• M870 12 Gage Shotguns
• M24 Sniper Weapon Systems”

MCS (Modular Combat Shotgun) – modular version of the M870 which can be quickly modified with different barrels, magazine tubes, and stocks for different purposes, such as urban combat and door breaching.

Remington Model 870 Modular Combat Shotgun (MCS)
Remington Model 870 Modular Combat Shotgun (MCS)


Remington M870: Come over to the green side, Luke…

Article by one of the readers of the blog which used Remington 870 in US Army.

M870 shotguns have been used by US Military for ages. Division Recon Marines took them with them when they spearheaded the invasion of Iraq in 2003. When SOF teams fight in urban environments, shotguns, such as the M870, are the best thing for close quarters combat, good for point and shoot speed and accuracy, and to ensure that over penetration of walls in the urban environment does not lead to collateral damage. Counter-terrorism teams such as Delta Force assaulters use the M870 as a breaching shotgun. In this configuration, the M870, typically with a 10 inch barrel and with stock removed, is loaded with special breaching rounds which are used to shoot away door hinges and locks.

Remington M870 Specifications

weight : 7-8 lbs (empty)
length : 37-45 inches
barrel length : 10, 14, 18 inches
rate of fire : single , pump-action
effective range : 40 meters
caliber : 12 gauge
magazine : 5-7 rounds internal tube magazine

The most recent variant of the M870 in use in the US military is the M870 Modular Combat Shotgun (MCS). The MCS kit features a receiver and magazine tube, with several attachable components such as barrels (10″, 14″, 18″), stocks and pistol grips. The MCS features a rail system for mounting optics, fore grips and lights.

And for the top voted most beautiful and violent combat machine this side of a Mk19 Full auto grenade launcher we have…..

Remington M870 Modular Combat Shotgun
Remington M870 Modular Combat Shotgun

The KAC M870p ‘Masterkey’ system! Its a cut-down Remington 870 fitted below a M16 or M4, in the manner of a M203 grenade launcher. The Masterkey has a 3+1 shell capacity and a barrel length of 9.5 inches. Here she is boys, in all her glory. You can’t handle this level of cool.


Best Upgrades for Remington 870
Best Upgrades for Remington 870

Vitaly Pedchenko

My name is Vitaly Pedchenko, I started this blog and forum to share information, tips, photos, and advice about the Remington 870 shotgun, accessories, and upgrades. Now I also own AR-15 rifle and MP5 pistol caliber carbine. I am firearms instructor, competitive shooter and IPSC Range Officer. I participate in practical shooting and 3-Gun competitions because they are the best way for me to test equipment and upgrades under stress. I am member of the PRACTICA shooting club. I also participate in REAGO, which provides Tactical Combat Casualty Care training. The main purpose of the blog and forum is to have a compilation of information about the Remington 870 shotgun in one organized, accessible place.

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