How to make Remington 870 Short Barreled Shotgun

Banshee posted new photos and iformation about his short barreled shotgun on Remington 870 Forum:

Sure no problem. I haven’t made any new pictures, so these are all old.

The shotgun started out as a Wingmaster Police trade in with a Mossberg replacement barrel that I picked up for $149.00. So, no nice 870 was harmed in this transformation.

There was a LOT of time spent measuring and planning on what needed to be done to make everything work out to reach my goal of an OAL of less than 18 inches. I chose 18 inches because that is the legal limit of a non NFA shotgun barrel and I wanted the whole gun to be shorter than that limit. I surpassed my goal by 1/2 inch.

I mounted the receiver in a lathe using a four jaw chuck and a steady rest. Cut the mag tube down and re-threaded it with the same square thread Remington used. The barrel was cut down to 7.00 inches and the barrel support ring was removed with a torch, reshaped so it would fit the barrel in the new location and silver soldered in place. The fore end tube had to be shortened and re-threaded. I made several different sling mounts and finely decided to use this one here.

How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
How to make Remington 870 Short Barreled Shotgun
Short Barreled Remington 870 Shotgun
Short Barreled Remington 870 Shotgun
Recommended Product:
Hogue Tamer Pistol Grip
Hogue Tamer Pistol Grip
Get Hogue Tamer Pistol Grip on Brownells

Shortening Shotgun Barrel, Finishing Muzzle, Advice, Instructions

David from Springfield, Illinois has sent me information and photos about finishing muzzle after shortening shotgun barrel.

I think this information will be very interesting for all who want to build a short barreled shotgun. Special thanks to David for photos and info:

I needed to shorten the 28″ barrel to 18-20″. I marked and sawed off the barrel, at 20″, using a hacksaw. I squared up the muzzle, using a table belt-sander, which left the muzzle fairly rough, with deep scratches.

Shortening Shotgun Barrel
Shortening Shotgun Barrel

I thought that you might be interested in seeing some photos of the finishing of the muzzle, to smooth and crown the muzzle.

I used “sanding sponges,” cheaply available from Harbor Freight (medium grit, equivalent to 100-150 grit.) Because of the soft, flexible backing provided by the sponge, I could press the muzzle into the foam, while spinning the barrel, producing a smooth, crowned muzzle shape. The photos depict the progression.

Sanding Sponge
Sanding Sponge
Finishing Muzzle
Finishing Muzzle
Shortening Shotgun Barrel
Shortening Shotgun Barrel

 

Shortening Shotgun Barrel
Shortening Shotgun Barrel

The animated GIF image shows the depression of the sanding sponge, which produces the slight crown:

Shotgun Barrel Muzzle Finish
Shotgun Barrel Muzzle Finish

I used a Scotch green sanding pad, of finer grit, to gently remove any remaining fine scratches, and produce a more-polished finish.
Very easy to produce professional results, in my workshop. I wouldn’t hesitate to recommend this finishing method to your readers.

David, thank you for photos and info!

Do you have experience building short barreled shotgun? Please leave a comment.

Related Post:

The Best Remington 870 How-To Videos and Posts

Short Barrel Remington 870 Shotgun

Simon from S&J Hardware has posted photos of his super cool shorty on the Remington 870 Forum:

Short Barreled Remington 870 Shotgun
Short Barreled Remington 870 Shotgun
Short Barreled Remington 870 Shotgun
Short Barreled Remington 870 Shotgun
Short Barreled Remington 870 Shotgun
Short Barreled Remington 870 Shotgun

Feel free to post photos of your shotgun on Remington 870 Forum.

Related Post:

5 Best Aftermarket Stocks for Remington 870

Short Barrel Shotgun – 12ga Wingmaster with a 7 inch Barrel

It is a shorty that I built a few years ago. It IS NOT A SERBU!

It is a 12ga Wingmaster with a 7 inch Barrel and 17.00 inch OAL and will hold two rds in the tube and one in the chamber.

Short Barrel Shotgun - 12ga Wingmaster with a 7 inch Barrel
Short Barrel Shotgun – 12ga Wingmaster with a 7 inch Barrel

Short Barrel Remington 870 Shotgun

Received photos of very interesting short barrel Remington 870 with folding stock.

Short Barrel Remington 870 with Sidesaddle
Short Barrel Remington 870 with Sidesaddle

List of upgrades:
Magpul forend
Fab Defense adapter with Magpul stock
Fab Defense flashlight mount
Strela Sidesaddle
Timney Remington 870/1100/11-87 Trigger Fix

Short Barrel Remington 870 with Sidesaddle
Short Barrel Remington 870 with Sidesaddle
Short Barrel Remington 870 with Folding Stock
Short Barrel Remington 870 with Folding Stock

Short Barrel Shotgun and Upgrades List

One more shotgun from the Remington 870 Photo Contest. Let’s have a closer look at upgrades it has.

Remington 870

Remember that barrels less than 18.5″ require Short Barrel Shotgun Tax Stamp from the ATF.

The folding stock is made by Advanced Technology. It makes shotgun very compact for easy transportation. But it provides a less comfortable cheek weld. You can even shoot the shotgun with stock folded but it will be painful for your wrist.

The sidesaddle is made by TacStar. It is 6-round receiver mount shell carrier. This upgrade is highly recommended for any home defense or tactical shotgun. It enables you to have additional rounds on your shotgun.

Ghost ring sights are made by Vang Comp Systems. They are one of the best aftermarket sights available. But price is pretty high.

Additional ammo carrier is made by LoadMaster Systems.

This setup looks like a very interesting compact home defense gun.

Recommended Products:
ati_folding_stock Get ATI Folding Stock on Brownells
tacstar_sidesaddle Get TacStar Sidesaddle on Brownells
vang_comp_systems_ghost_ring_sights Get Vang Comp Systems Ghost Ring Sights on Brownells

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 Rem870.com blog and forum is to have a compilation of information about the Remington 870 shotgun in one organized, accessible place.

4 thoughts on “How to make Remington 870 Short Barreled Shotgun

  • 28.03.2019 at 20:22
    Permalink

    What pistol grip is that, and where can I get my hands on it?

    Reply
    • 27.08.2019 at 18:40
      Permalink

      Chances are pretty good that whenever you see a rubber grip with finger reliefs like that, it’s made by Hogue.

      Reply
  • 13.06.2020 at 13:00
    Permalink

    We purchased such a weapon direct from Remington, my wife loves it. It is also called for confusion Remington 870 just like in picture.

    Reply
  • 05.09.2020 at 13:36
    Permalink

    Remember to measure your barrel the way the ATF would measure it. It doesn’t measure from the end of the receiver, but rather from the breech face. They drop a dowel down the barrel onto the closed breech face of the gun and the measurement starts from there. Unload and verify and empty chamber before you start work.
    So if you’re shortening a barrel, stick a tape measure down the bore and measure from the closed breech face to get the exact overall length. Next, measure from the muzzle back to the point you wish to cut. If you’re cutting a 28″ barrel down to 18″, you would measure back 10″ from the muzzle and mark the barrel there. This is where most people would tell you to add 1/2 inch to your measurement (measure 9.5″ instead of 10″) for an 18.5″ barrel, just in case the ATF or Police ever get interested in your gun. That 1/2″ could be the difference between getting your gun back or getting a felony charge. I would suggest adding that little 1/2″ too. Also, some extended tubes will stick out beyond an 18″ barrel should you ever add one. While it won’t likely hurt anything, I don’t like the looks of it. Measure first if you intend to add a longer tube. Also, if you’re shortening a vent rib barrel, you need to take into account where the last rib lands. Meaning, you might not get right to the 18″ barrel you wanted, but might have to settle for 19″ or somewhere in between.

    Also, keep in mind that removable muzzle devices may not be counted in the overall length, so if you cut to 18″ on the nose including your removable or adjustable choke, you might have just made an illegal short barrelled shotgun. Allow room for any muzzle devices. Measure the barrel and cut it to 18″ (or 18.5″ like I suggested above) THEN add your muzzle devices to the overall length.

    Finally, tie a piece of fishing line around the front sight bead and bring it back over the top of the receiver to establish your center line. Mark this line in multiple locations so you can line everything back up. You’ll need this when you reinstall the front sight bead or your gun won’t point true.

    Reply

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