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PTS Licensed UBR (Utility Battle Rifle) Stock For M4 / M16 Series Airsoft AEG - Dark Earth

ID: 31426 (Stock-PTS034AEG-DE)
5.0 stars, based on 1 reviews
z PTS Licensed UBR (Utility Battle Rifle) Stock For M4 / M16 Series Airsoft AEG - Dark Earth
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PTS Licensed UBR (Utility Battle Rifle) Stock For M4 / M16 Series Airsoft AEG - Dark Earth

PTS UBR Collapsible Buttstock (Utility / Battle Rifle), U.S. Patent 6651371, is a fully-featured, adjustable butt stock for AEG M4 / M16. Unlike typical collapsing stocks, this modular design offers the stability of a fixed stock with consistent cheek weld in any position. Seven-position length-of-pull (LOP) adjustment is quickly executed with gross motor movement while the integral preset system allows direct access to a preferred position. The UBR also provides extra counterbalance weight to improve handling on full-length rifles and weapons with muzzle-heavy accessories or grenade launchers. Optional components such as dual-side sling mounts and metal strike plate allow the UBR to adapt to the mission at hand.


  • Newly designed receiver extension tube can accommodate a small 7.4v LiPo battery
  • 7-Position LOP adjustability with customizable preset system for fast access to preferred length
  • Heavy duty fiber reinforced polymer construction
  • Solid fixed stock-like lockup in all positions of LOP
  • Stout construction provides counterbalance weight for improved weapon balance and handling
  • Front / Rear push-button QD sling mounts
  • Bottom - 1.25" Sling loop
  • Storage compartment for small tools, batteries, or snacks
  • Comfortable rubber butt pad
Material: Fiber Reinforced Polymer
Color: Dark Earth
Compatibility: Short Type AEG Receivers

Manufacturer: PTS

1 Customer Review

(Write a review)

by Dale R. on 01/05/2011
"I got this stock today and wanted to give a short review of it. First off you need an adapter to make this fit!! There was nothing mentioning it so I found out the hard way. I put it on a VFC M4. The stock replaces the exisiting buffer tube. By doing so it requires a 1 3/4" spacer inside the tube. This is to keep it from moving back and forth. There is a kit available but I haven't seen it on Evike. I instead made my own from some 1" PVC tubing. However if you are not handy I wouldn't attempt it yourself. Otherwise the stock is very solid. Slightly smaller then I thought but very modular and well built.

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This item is Discontinued.