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

(1 customer review)

$119.99 GST Included

Out of stock

Get notified when this item is back in stock


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


  • Brand: Heng li Feng (HLF)
  • 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 210 Feet Per Second
  • Up to 16 Rounds Per Second
  • Up to 20m Firing Distance

Package includes:

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

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

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 6 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.

Additional information

Weight 1.8 kg
Dimensions 56 × 28 × 9 cm






1 review for HLF UMP-45 Gel Blaster w/ Gen 8 Gearbox (Black)

  1. brendan_sm (verified owner)

    very good smg I got mine stock planning on upgrading it unfortunately it broke after a couple of uses. I contacted support I got a new one sent out and it seems they modded it for me and gave me a spare mag and hardened gel balls now it destroys at range and speed I recently chucked an 11.1 v battery and this thing absolutely insane. highly recommend this already an amazing blaster without upgrades but a couple basic upgrades will leave your opponentss crying. the customer service is A++++++++++++++++++++

Add a review

You may also like…