UMP-45 Gel Blaster w/ Gen 8 Gearbox (Black)

$225.00 $199.99

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UMP-45 Gel Blaster w/ Gen 8 Gearbox (Black)


  • Brand: Heng li Feng
  • Release Date: June 2018
  • Type: Automatic / Battery Powered
  • Firing Mode: Automatic
  • High Quality Finish
  • Solid, Dense Nylon Construction
  • Complete with JM Gen 8 Gearbox
  • Alloy Barrel
  • Mag-Fed
  • Foldable Stock
  • Rail on All 4 Sides for Tactical Accessories
  • Iron Sight
  • Multiple Sling Attachment Points
  • Charging Handle
  • Magazine Capacity: Approx 400 Gel Balls
  • Uses 7-8mm Gel Balls


  • Up to 260 Feet Per Second
  • Up to 16 Rounds Per Second
  • Up to 25m Firing Distance

Package includes:

  • 1 x HK UMP-45
  • 1 x Magazine
  • 1 x Buttstock
  • 1 x 7.4v Battery
  • 1 x USB Charger
  • 5 x 500 Pack of Gel Balls

***Please note: Gel balls included with Blasters are generally of low quality and can often cause feeding issues, we highly recommend purchasing our high quality Hardened Gel Balls for the best performance***

9 in stock


Gel Ball Hydration 101


  1. Pack of Gel Balls
  2. Bucket
  3. Water

Gel ball / water ratio:

  • 10,000 pack / 4L water
  • 5,000 pack / 2L water
  • 500 pack / 200ml water


Step 1: Empty gel ball pack into bucket.

Step 2: Fill bucket with water (more is better).

Step 3: Allow gel balls to soak for 4 hours minimum! (Overnight recommended)

 Your gel balls are now ready to use.

Storage: Up to 2 weeks in an airtight container away from sunlight. For best results, store in water and strain when needed.


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