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Bullgear CNC Machined Hop-Up for A&K / Cybergun / Classic Army M249 Airsoft AEG

ID: 71548 (HU-BGRINU-HU-1-0001)
5.0 stars, based on 5 reviews
Bullgear CNC Machined Hop-Up for A&K / Cybergun / Classic Army M249 Airsoft AEG
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This item is currently Out of Stock


  • CNC machined aluminum alloy construction
  • Precision craftsmanship increases accuracy and range
  • Easy to manipulate rotary hop-up
  • Designed for use with Prometheus purple bucking, or other lipless buckings
This isn't just a replacement CNC hop up for A&K, Cybergun and Classic Army M249. Made out of full metal so it will last longer and give you the edge in accuracy. It is designed for the Prometheus Purple hop up rubber, or other lipless hop up rubbers. Once the barrel is connected to the chamber itself, there is absolutely no wobble at all which increases it's reliability. Modern hop up chambers uses a spinning dial to adjust the hop which is far more reliable than previous versions and will account for more precise adjustments.

Compatibility: A&K/Cybergun/Classic Army M249 AEGs
Material: Aluminum alloy

Manufacturer: Bullgear

5 Customer Reviews

(Write a review)

by Andrew R. on 11/19/2018
"I was worried about the fitment on my Stoner MG but it fit just like the original. The square window lets me finally flat hop this beast. 100% would recommend.
by Tristan K. on 05/07/2018
"Absolutely fantastic. It adds an actual hop up arm to your LMG. It can take different nubs, and it accepts even rather thick buckings. I got my A&K M249 para up to about 430 fps (with .2s), and I was having to overhop to zero my ACOG at 150 feet. I stuck this awesome hop-up in my saw, and I saw an increase of 20 fps due to a better airseal. Extra velocity is always a plus in my book. I threw in a 75° maple leaf bucking with a maple leaf hop-up nub (both of which are excellent products and highly recommended to get better range on any weapon in your arsenal), and I am now slinging .2s out to 200-250 feet easy.
by Joel D. on 12/11/2017
"This is what we've been waiting for. Feed issues solved, accuracy increased, and it looks great. This is a must have for HPA conversions.

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This item is currently Out of Stock. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.