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Bullpup Unlimited Remington 870 Conversion Kit

Model: BPU870
Condition: Factory New
Bud's Item Number: 411554177
MFG: Other

**Mouse over image above to zoom any area, or click on image to zoom the entire image.

*Please Note!! Many of our pictures are stock photos provided to us by the manufacturer and do not necessarily represent the actual item being purchased. Please verify this picture accurately reflects the product described by the title and description on this page before you place your order.

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Introducing the Remington 870 Bullpup Conversion Kit from Bullpup Unlimited, Inc.  This conversion kit will take your 870 12g shotgun and shave down almost 10" from the overall length while retaining all the practicality and reliability the Remington 870 is known for!  All the tools needed for conversion are included and it can be done in less than an hour, not to mention it's fully reversible!

  • Designed to accept a wide variety of aftermarket AR-style accessories
  • Familiar AR-style grip and safety Split-trigger for increased safety
  • Variety of rail mounting areas for tactical accessories
  • Super-smooth and contoured slide release area
  • Rugged shell deflector for left handed shooters
  • Ergonomically shaped and easy-to-grip slide forearm
  • Generous access to loading port
  • Conversion assembles easily with tools provided
  • Easy to follow conversion instructions included
  • Multiple ambidextrous sling points for 1-point and 2-point sling
  • Field strips with tools included under butt pad
  • Manufactured from rugged, hi-tech, molded materials
  • Features an easy-to-grip, non-reflective surface texture
  • Does not in any way alter the original shotgun
  • Overall thickness: 2.75, width: 8, length: 28

*This item is the conversion kit only, gun not included. 

*Will not fit 3.5" models, a ribbed barrel, or rifled sights. ATI extended magazine tube will not work.

*This model will only work with Remington 870 12g shotguns.

If you have any questions about assembly after you receive your unit you are welcome to contact our Bullpup Rep - J.J.

He can be reach by email or phone Monday thru Friday 10am - 5pm est.

 Phone - (270) 585-3447

Email -  [email protected]  - preferred method.


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Product Reviews
21 Reviews. Average Rating: 4.1 of 5 Stars! [4.1 of 5 Stars!]
5 stars:
58% (12 of 21)
4 stars:
20% (4 of 21)
3 stars:
10% (2 of 21)
2 stars:
9% (2 of 21)
1 star:
4% (1 of 21)
Reviewed By: Robert P on 12/09/2014 Rating: 3 of 5 Stars! [3 of 5 Stars!]
its a novelty item. the bu870 is well made but feels cheap due to their trigger. but you get to cut off 10 inches without the need for a tax stamp.

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Reviewed By: william c on 11/06/2014 Rating: 5 of 5 Stars! [5 of 5 Stars!]
I ordered this stock from Buds Gun Shop on 10-29-14 and it was delivered on 11-3-14 very fast shipping. I done a lot of review reading about this product and after a few weeks of thinking about it I ordered it. installation from start to finish took about 1/2 an hour the instructions were easy to follow and very detailed and I am very pleased with the results, the bull pup 870 feels very comfortable and balanced and looks awesome, I would definitely recommend this product to anyone wanting to dress up their 870.

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Reviewed By: Richard F on 10/07/2014 Rating: 4 of 5 Stars! [4 of 5 Stars!]
Ordered the bullpup kit from buds. Arrived fast with all parts needed in the box. Assembly took a little longer due to some of the screw holes having to be cleaned out. no major issues. Everything is tight and feels good. I was concerned about the quality after reading some of the reviews. I'm glad I ordered it. Makes for a beast of a home defense weapon.

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Reviewed By: Paul M on 10/02/2014 Rating: 5 of 5 Stars! [5 of 5 Stars!]
are you kiddin me? this is the best thing you could ever do with your remington shot gun PERIOD! it feels solid, perfect balance, perfect size,and dont worry about the assembly,the utube video will guide you every step of the way. its got all the rails youll ever need and ITS BAD ASS!!

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Reviewed By: Richard F on 08/27/2014 Rating: 3 of 5 Stars! [3 of 5 Stars!]
I gotta say, I was originally hesitant on ordering this product after watching videos of it continually malfunctioning. However I decided to take the gamble and purchase this product. I ordered this product on 08/20/14 and received it on 08/ 25/14. The product needs major finishing to make it look aesthetically pleasing. The item came with very rough seams and sharp edges from the casting process. It took me 4 hours to sand it down to a quality that I thought would pass as a production firearm.. After sanding I put a few coats of satin black paint on it (had to disassemble the entire chassis, trigger and all. Actually very simple) and it now looks very sharp. I put my old bird gun into the chassis to test it out. Loaded up 7 rounds, pumped it, bulled the trigger, and it went bang... every time. Not a single feed issue, no short strokes, no failure to eject. The firearm is substantially more fun to shoot and can now be used as an effective home defense weapon. All in all I'm happy with the purchase and will be buying one for myself soon (this one is a weeding gift). I would not call this a finished product, but I'm anal like that. To make this look good you will have to sand seams, you will have to paint, and you will have to be patient. Very fun little project. I give this product 3 out of 5 just because of the finishing I had to do. The firearm functioned flawlessly for me.

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