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Angry Gun Stock Tube Gas Chamber Conversion Kit for Tokyo Marui 870 Series Airsoft Gas Shotguns

ID: 49568 (Stock-AG-TM870GTS)
Angry Gun / Andax WorksAG-TM870-GTS49568
5.0 stars, based on 2 reviews
Angry Gun Stock Tube Gas Chamber Conversion Kit for Tokyo Marui 870 Series Airsoft Gas Shotguns
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Angry Gun / Andax Works


This item is currently Out of Stock

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  • Converts the fixed stock on the TM870 to a retractable M4-style stock tube with pistol grip
  • High compression oring for optimum gas seal
  • Stock tube acts as fillable gas reservoir, no need to swap gas cartridges
  • Compatible with most M4 style retractable stocks (sold separately)
  • Compatible with most M4 style GBB / real steel pistol grips (sold separately)
  • QD sling swivel attachment point on either side (QD sling swivel sold separately)
  • 6-position stock tube
  • Aluminum material
  • Matte black finish
Compatibility: For Tokyo Marui 870 series Airsoft gas shotguns
Material: Aluminum alloy

Manufacturer: Angry Gun

2 Customer Reviews

(Write a review)

by Dominic B. on 12/16/2015
"This stock tube is an amazing conversion for your M870!!!
I have a mil-spec size minimalist stock on mine, and it fits perfectly!

Won't warp with green gas like the original stock's canister will
Is more customizable- with handgrips and stocks of your choosing
Higher gas capacity
Is able to be HPA tapped very easily- I believe the Russian HPA valves will work, but I'm not positive...
Easy to assemble
Comes well packaged in thick foam, would be nearly impossible to be harmed during shipping
Very sturdy and durable

Bumps up FPS a bit
I think some people said some stocks may not fit well with the buffer tube, but I've had 0 trouble

Really worth the money, and a great addition to make your TM M870 unique!
by Juan M. on 01/19/2015
"amazing!!! installed it on my TM 870 breacher and love how it feels. It also sounds a bit louder but I did read the AG adaptor pushes the fps up a bit.

make sure you have a heat gun to remove the main screw once the pistol grip is removed. had the heat gun on for about 3 min and the screw came off with ease.

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