Sully 870 Ejector System

Remington 870 Repair and Gunsmithing.
Sully
Enthusiast Shotgunner
Posts: 34
Joined: Wed Sep 18, 2024 6:16 am

Re: Sully 870 Ejector System

Post by Sully »

pavementends wrote: Mon Mar 03, 2025 6:41 pm Two questions,
Do you have the 31/2" ejectors available
Is the a video or instruction sheet on installing the modified ejector.
Kind regards
Pavementends
We will have a 3.5" Super Magnum version available in a couple of months. As for installation instructions and a video, they are available on our website.

CY6
Greg Sullivan "Sully"
WeaponsArmorer
SLR15 Rifles
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(763) 712-0123
pavementends
Newbie
Posts: 2
Joined: Mon Mar 03, 2025 6:36 pm

Re: Sully 870 Ejector System

Post by pavementends »

many thanks
Kent
ccmaymd
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Joined: Fri Jul 18, 2025 2:27 pm

Re: Sully 870 Ejector System

Post by ccmaymd »

Just want to let everyone know, I had my smith replace a broken ejector with the Sully system and he LOVES it. Says that from now on, he is going to recommend it to the owner of every 870 he works on. It's worked flawlessly for me for more than a thousand rounds.

The factory ejectors are the weakest and most common point of failure in the 870, difficult to find, and a pain in the ass to replace. I'm surprised it took so long for someone to come up with this innovation, but it's here now, and in my opinion it cements the position of the 870 squarely at the top of the heap among pump shotguns.
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Wolf Spring
Shotgunner
Posts: 15
Joined: Tue Aug 27, 2024 10:01 am

Re: Sully 870 Ejector System

Post by Wolf Spring »

Just curious, What would the ejector screws look like after installation. Would the screws fit flush to the receiver, would it look obvious that the ejectors were replaced. I'm definitely interested, I have one that needs replacing on my 70's wing master. Thanks. -Ronnie
Sully
Enthusiast Shotgunner
Posts: 34
Joined: Wed Sep 18, 2024 6:16 am

Re: Sully 870 Ejector System

Post by Sully »

Image
Image
Image

In the above pictures, you can see that the button head screws are domed, and protrude out about half the thickness of a $.10 dime. We chose this type of screw due to that when we started sampling 870 receivers from modern to dating back to the 1950's, we found that there we differences in the depth of the factory rivet holes. So by using a button head, the domed head will not catch or interfere with anything, button head screws are common on many firearms for a very long time, which don't interfere with anything.

As for adding a side shell carrier, you won't have to worry about any protrusion of the button head screws interfering with the side shell carrier plate, as we have used them with TacStar, Mesa Tactical, and Aridus, with no issues of fit or function.

CY6
Greg Sullivan "Sully"
WeaponsArmorer
SLR15 Rifles
Defensive Edge Training
(763) 712-0123
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