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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)
4.9 stars, based on 7 reviews
Bullgear CNC Machined Hop-Up for A&K / Cybergun / Classic Army M249 Airsoft AEG
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  • 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.

Manufacturer: Bullgear


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

About BullGear

BullGear designs and manufactures custom parts for Airsoft guns.

7 Customer Reviews

(Write a review)

by nicholas m. on 03/08/2020
"i have the gen 2 version of this (has two screws to pull the barrel clip up, and a screw for the hop up arm not a lever) and i have been very pleased. Truly a drop in mod to correct the hop up issue from A&K. I did have to run a slightly longer nozzle to achieve full compression but not a huge issue, for me 21.6mm was the correct nozzle length and i put a slight chamfer on the end of mine. checking against my chrono (acetech5000) im getting deviations of about /- 2fps @23 rps which is great for me. This is in a MK2 with a 510mm barrel.
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

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