Factory mag extention question

Discuss all accessories and upgrades available for the Remington 870 shotgun: stocks, forends, barrels, chokes, magazine extensions, followers, safeties, sights etc.
uwmcscott
New Shotgunner
Posts: 8
Joined: Tue Aug 25, 2020 9:01 pm

Factory mag extention question

Post by uwmcscott » Tue Aug 25, 2020 9:12 pm

Hello, newbie here and sorry for asking yet another question about magazine extensions, but could not find an answer by searching here or other places. I recently purchased the 18.5" police barrel from a local sporting goods shop in my travels, they actually had 5 of them in stock which was very surprising as no one seems to have them anywhere else. It was a Fleet Farm store in Antigo WI for those that might want to know - and they don't ship, even to other stores...probably why the had them on the shelf.

Anyway, I see that on Remington's parts page there are actually 3 separate options for 3-round extensions. Two of them appear to be the traditional one-piece tube/cap with the separate lock ring and come in blued ( Remington Part #19421 ) and Parkerized/Matte ( Remington Part #19422 ). There is also a third option which appears to be 2-piece ( separate tube and cap ) that is listed as a flush mount ( Remington Part #19522 ). The latter kit also comes with the newer style barrel clamp and doesn't have the bayonet mount or the ring -its just a straight tube.

None of them appear to be in stock anywhere, just wonderiong if anyone had experience with the newere style 2-piece unit - and if it does truly sit flush on an 18.5" barrel.

I"m making some upgrades to my 870 express that I've had for about 25 years, has the dimple that needs to be drilled as well.

Thanks in advance

User avatar
Scorpion8
Mentor Shotgunner
Posts: 891
Joined: Wed Nov 29, 2017 7:17 pm
Location: SE-AK

Re: Factory mag extention question

Post by Scorpion8 » Wed Aug 26, 2020 3:47 pm

No one's ignoring you, but not all of us have experience with the mag tube extensions. I have never used one, but somebody will be along soon.
Retired USN
NRA Life ; NAHC Life
Pain heals, chicks dig scars.....glory -- lasts forever!

byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 4:31 pm

Agree. I have a few. Will do some swapping and snapping at lunchtime, and post here.

Sent using Tapatalk


byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 4:39 pm

In the meantime, I suggest searching the tube for a tutorial by Synchronizor, iirc, where he explains quite a bit about extensions, including 1-piece vs. 2-piece
Last edited by byxlaw on Sun Aug 30, 2020 5:54 am, edited 1 time in total.

uwmcscott
New Shotgunner
Posts: 8
Joined: Tue Aug 25, 2020 9:01 pm

Re: Factory mag extention question

Post by uwmcscott » Wed Aug 26, 2020 4:44 pm

byxlaw wrote:
Wed Aug 26, 2020 4:39 pm
In the meantime, I suggest searching the tube for a tutorial by Synchronizor, iirc, where he explains wuire a bit about extensulions, including 1-piece vs. 2-piece

Sent using Tapatalk
Thanks, and I did indeed watch that tutorial a few days ago when I started researching, very good information. I think his vid is one of the first ones if you google "870 magzine extension" ;-) I think a 2-piece is the way i'd like to go, which led me to the question between the 2 factory remington versions.

And no worries on response time, judging by the way everything is in short supply it will likely be a while before anything is available to purchase anyway. I have thought about driving back to the store I found all those 18'.5 police barrels and grabbing the lot, but I really only need one so hopefully others in need will grab one.

byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 10:04 pm

01 lineup 2.jpg
01 lineup 2.jpg (290.62 KiB) Viewed 172 times
A "lineup" of +2 and +3 extensions, together to compare size and finish. Also an M1100 "competition" which looks like a +4 and has same thread.
01a tube coupler detail.jpg
01a tube coupler detail.jpg (682.16 KiB) Viewed 172 times

byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 10:06 pm

Sample of "flush" and "lug" ends
02 tube ends 1.jpg
02 tube ends 1.jpg (768.18 KiB) Viewed 172 times
03 tube ends 2.jpg
03 tube ends 2.jpg (1000.48 KiB) Viewed 172 times

byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 10:08 pm

Here, an 18" barrel with different tubes
04 18-in and +2 blue.jpg
04 18-in and +2 blue.jpg (899.74 KiB) Viewed 172 times
05 18-in and +2 park.jpg
05 18-in and +2 park.jpg (1.1 MiB) Viewed 172 times
06 18-in and +3 blue.jpg
06 18-in and +3 blue.jpg (1022.68 KiB) Viewed 172 times

byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 10:09 pm

forgot 18" with 1100 tube
Attachments
07 18-in and 1100 comp (+4).jpg
07 18-in and 1100 comp (+4).jpg (1 MiB) Viewed 172 times

byxlaw
Shotgunner
Posts: 18
Joined: Tue Apr 07, 2020 3:53 am

Re: Factory mag extention question

Post by byxlaw » Wed Aug 26, 2020 10:10 pm

Now, for 20" barrel
08 20-in and +3 blue.jpg
08 20-in and +3 blue.jpg (1015.45 KiB) Viewed 172 times
09 20-in and +2 park.jpg
09 20-in and +2 park.jpg (1.03 MiB) Viewed 172 times
10 20-in and 1100 comp (+4).jpg
10 20-in and 1100 comp (+4).jpg (1.08 MiB) Viewed 172 times

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest