SKU: 85458867228

Elite CNC Hop-Up Chamber for M4

$96.69 $107.43
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Elite CNC Hop-Up Chamber for M4Prometheus ELITE CNC Hop Up Unit Compatible with standard hop up, flat hop, and R hop CNC construction Includes 2 Prometheus buckings and nubs Ball bearing spring set for secure adjustment with positive clicks Compatible with standard nozzles Widely compatible chamber design The Prometheus ELITE CNC parts series takes Prometheus designs to the highest level for those seeking the most premium hop up unit. The highly customizable ELITE hop up chamber

Prometheus ELITE CNC Hop-Up Unit

●Compatible with standard hop-up, flat hop, and R-hop

●CNC construction

●Includes 2 Prometheus buckings and nubs

●Ball-bearing spring set for secure adjustment with positive clicks

●Compatible with standard nozzles

●Widely compatible chamber design

The Prometheus ELITE CNC parts series takes Prometheus designs to the highest level for those seeking the most premium hop-up unit. The highly customizable ELITE hop-up chamber allows the use of standard, flat hop, and R-hop inner barrels and buckings without compromising performance. Use the included ball-bearing spring set for secure adjustment with positive clicks at every hop setting, or remove it for finer adjustment—the choice is yours!

Our two most popular standard buckings are included, the purple bucking and the blue bucking, covering a wide range of BB weights and hop configurations. The precision CNC-machined chamber is manufactured in Japan and is compatible with a wide variety of standard M4-type builds, including Krytac, Tokyo Marui, G&G, and many more!

■ Brand: Prometheus

■ Includes:

・ CNC Hop-Up Chamber

・ Prometheus Purple Bucking (soft)

・ Prometheus Blue 60-Degree Bucking (firm)

・ Ball-bearing spring set (removable for finer adjustment)

・ Barrel clip

・ Vertical hop tension arm

・ Hop arm lever

・ O-ring

・ Stop screw

■ JAN: 4571443182197

■ Caution:

※ Not all AEG models are fully compatible without modifications. Use the stop screw or the original barrel stabilizing springs for a secure fit.

※ Be careful not to apply silicone spray or oil inside the inner barrel or on the hop-up bucking, as this may cause inconsistencies.

※ The use of LayLax Prometheus inner barrels and hop-up buckings is recommended for optimal performance due to the preset fitting dimensions.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85458867228

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4.6 ★★★★★
Based on 7 reviews
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Product Reviews
S
Verified Purchase
Stephen Roth
Massapequa, US
★★★★★ 5
Great purchase
Color: Black/White/Black, Color: Black/White/Black
The perfect watch for my eyes. White background with black hour and the second hand. Standard stuff… It’s all about the simple things that matter to me. The indigo green light might not appeal to everyone (look at the price). The band is fabric with Velcro to adjust. I’ve work this watch day and night. A near perfect fit. Easy to adjust and it’s comfortable for me, the look is just right for me. A no brainer to set up immediately. Time (?) will tell about minute creep or over all durability, A nice affordable watch that I I’ll wear everyday under all conditions. If I loose it I’ll buy another one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
F
Verified Purchase
FelixtheReader
Waukegan, US
★★★★★ 5
Inexpensive Box Checker That Works Great!
Color: Black/White/Black
Although I have a few watches I was looking for something that was more camping specific. Something that was EASILY legible to my 56 year old vision - both in daytime and night. I needed it to have some waterproofness ability as I would also using it for kayaking. I had a Timex Expedition watch with a black dial that I gave to my son as I wanted one with a white face which I find easier to read. I gave this watch some serious consideration after seeing so many YTbers give Timex field watches the thumbs up. I came upon this model and then when I saw one available under $30 it became a no-brainer! I used it recently for its intended purpose - a 3 day camping weekend. So here are my observations. The strap is probably the only negative to the watch for me as I have big hands and need to undo it completely to feed the strap through the buckle. A minor hindrance. Once its on it's light and comfortable. I may eventually change out the strap...or I may not. The watch is easily legible and nothing, I MEAN NOTHING, beats Timex's "Indiglo" feature for nighttime. Forget "watch lume" as nothing is a visibly legible at nights as "Indiglo". I have a Casio watch that has a light feature but that cannot hold a candle to this watch's nighttime ability. On a kayak trip, I overturned the kayak and the watch was in the water so it held up nicely for that. The watch is rated for 100M so that was nothing for it I know. It's hard to find a watch that does so much at this price point. I would definitely recommend it for someone looking for the features that it has in an inexpensive package.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2020
A
Verified Purchase
Andrey C
Phoenix, US
★★★★★ 3
Decent watch, bad warranty.
Color: Black/White/Black
Decent watch, good design, solid strap. Bad warranty. I spent a little bit more money to get a better quality product with a name brand warranty, and I feel like it was a waste of money. The backlight stopped working within 6 months. I replaced the battery, but it didn't help. I started the process of a warranty repair with Timex, but then found out they have a $8 fee for in-warranty repair. With the cost of the watch being what it is, I'll just deal with the broken backlight. Next time I'll spend less money on cheap disposable non-brand name watches
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 20, 2025
H
Verified Purchase
Harold the Barrel
Pawtucket, US
★★★★★ 5
EXCELLENT WATCH FOR THE MONEY
Color: Black
The watch is reliable, well-made and looks high-end on the wrist. Excellent watch for the money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
D
Verified Purchase
DW
Boise, US
★★★★★ 5
Fresh af
Color: Black
Gorgeous watch. Classic, great quality. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

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