Sage TS870R Stock Receiver Stud Spec?

General discussion about Remington 870 shotgun.
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DirtyHarry_896
Newbie
Posts: 1
Joined: Sun Jun 08, 2025 6:47 pm

Sage TS870R Stock Receiver Stud Spec?

Post by DirtyHarry_896 »

Hi all, I purchased a Sage International TS870R (EBR) stock about 10+ years ago and never use it. I recently started a 870 clone build and was trying to install this stock on a 870 Magnum receiver, but was surprised to find that the stock didn’t fit at all.

After going through the manual, it seems the kit is supposed to come with a special receiver stud to replace the OEM one, which I never see at all. Could someone help confirm the spec of that stud? It looks like a shortened OEM stud or MCS stud to me. Thanks!

My build right now (the LE folder is placeholder):
Image


The reference I’m trying to clone:
Image

Backup link: https://imgur.com/a/4Tuqtia
BKinzey
Senior Shotgunner
Posts: 275
Joined: Fri Mar 27, 2020 6:57 pm

Re: Sage TS870R Stock Receiver Stud Spec?

Post by BKinzey »

Did you try contacting Sage? Sorry I can't offer more help.
AngelaJAmes
Newbie
Posts: 1
Joined: Fri Jun 27, 2025 4:43 am

Re: Sage TS870R Stock Receiver Stud Spec?

Post by AngelaJAmes »

DirtyHarry_896 wrote: Sun Jun 08, 2025 7:29 pm Hi all, I purchased a Sage International TS870R (EBR) stock about 10+ years ago and never use it. I recently started a 870 clone build and was trying to install this stock on a 870 Magnum receiver, but was surprised to find that the stock didn’t fit at all.

After going through the manual, it seems the kit is supposed to come with a special receiver stud to replace the OEM one, which I never see at all. Could someone help confirm the spec of that stud? It looks like a shortened OEM stud or MCS stud to me. Thanks!

My build right now (the LE folder is placeholder):
Image


The reference I’m trying to clone:
Image

Backup link: https://imgur.com/a/4Tuqtia
You're right, it's a shortened version, often referred to as an MCS-style stud, designed to clear the internal clearance of the EBR chassis.
janniksinner
Newbie
Posts: 1
Joined: Tue Jul 29, 2025 7:34 am

Re: Sage TS870R Stock Receiver Stud Spec?

Post by janniksinner »

DirtyHarry_896 wrote: Sun Jun 08, 2025 7:29 pm Hi all, I purchased a Sage International TS870R (EBR) stock about 10+ years ago and never use it. I recently started a 870 clone build and was trying to install this stock on a 870 Magnum receiver, but was surprised to find that the stock didn’t fit at all.

After going through the manual, it seems the kit is supposed to come with a special receiver stud to replace the OEM one, which I never see at all. Could someone help confirm the spec of that stud? It looks like a shortened OEM stud or MCS stud to me. Thanks!

My build right now (the LE folder is placeholder):
Image


The reference I’m trying to clone:
Image

Backup link: https://imgur.com/a/4Tuqtia
Are you planning to run any optics or accessories on the TS870R chassis once it’s installed? Just wondering if you're also adjusting for comb height or LOP since those EBR stocks can feel pretty high with standard sights.
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