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EMG CNC MG Precision Hop-Up for Airsoft AEG Machine Guns
(Model: A&K / Cybergun / Classic Army M249)

ID: 71548 (HU-EMG-M249)
81046
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EMG

$49.99

MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

Product Description

Features

  • Durable CNC construction with hard anodized finish
  • Smooth & precise rotary adjustment
  • Uses contemporary hop lever design to utilize standard & common aftermarket upgrade nubs
  • Internal dimensions accept common AEG type bucking (as opposed to the old gen proprietary MG buckings)
  • Clamshell design eliminates plastic mounting c-clips that can be prone to damage
  • Built-in locking tab prevents barrel rotation
The EMG CNC Hop-Up for Airsoft AEG Machine Guns is a precision upgrade unit built from durable CNC aluminum alloy for improved longevity and performance. Featuring a rotary adjustment system, it delivers more consistent hop control, enhanced accuracy, and increased range. Designed for compatibility with lipless buckings, it ensures stable feeding and a secure, wobble-free barrel fit.

Manufacturer: EMG

9 Customer Reviews

(Write a review)

by KABLE T. on 03/18/2026
"It fits my barrel very well and feels secure thanks to the clip holding it firmly in place. The clip provides a snug, reliable fit without any looseness or wobble. Additionally, the bottom portion of the barrel clip sits completely flush against the hop-up unit, which is a big plus. Because of this, it slides smoothly into my gun’s outer barrel without any resistance or alignment issues. Overall, the fitment is clean, precise, and works exactly as intended.
by Chirs B. on 01/11/2026
"Works a treat and nicely fixes the weird feeding the stock hop is prone to on an A&K M249.

I recommend a purple Prometheus bucking or EMG Atlas bucking.
Needs less than half the adjustment range to hop 0.30's.

Great hop unit
by Hunter K. on 02/23/2024
"This is the only Hop-Up you should every be running in an A&K or Classic Army M249. If you have one of the M249's this is made for, buy this up while it's still in stock. This hop-up unit completely eliminates all the issues with the stock units. It feeds flawlessly and when installed correctly with quality parts (bucking, Barrel, ect.) allows for extremely consistence shots.

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EMG

About EMG

The EMG vision is to manufacture products the world has never seen before; products we would put our name on, and products that hit the spot! "EMG" (Evike Manufacturing Group) was spawned from the realization that if you want something done exactly the way you want it, you need to do it yourself, and we did just that.
We took our 16 years of knowledge as the market's lead retailer, our network of 300+ superior manufacturers, to work with inspiring top innovators in the firearms industry. That combined with the vision to invest into the Airsoft industry, an industry we believe in, EMG was born.