Retro Arms CNC M4 Hop Chamber
Currently out of stock across all retailers.
Prices last checked July 20, 2026 across 1 retailer.
The Retro Arms CNC Rotary Hop Chamber for M4 AEGs is one of the finest hop chambers on the market. Fully CNC machined from Aluminium billet this hop chamber will outperform in virtually any V2 AR-base AEG.Features: - Rotary adjustment wheel with large notches for easy adjustment- Optional BB retention o-ring for the feed tube- Stabilising o-ring for the gearbox hole- Two hop arms: --Standard AEG hop arm --TDC two-part hop arm with shaped nub (ideal for R-Hops)- Screw-in hop arm pin so it never works loose- Barrel locking collet - barrels cannot be rotated or work loose from the hop chamber- Smooth operation with 'Hop On' direction indicator- Excellent finish - fully anodized- Extremely competitively priced
Retro Arms CNC M4 Hop Chamber price comparison: the lowest price is $38.84 at Kingdom of Airsoft, and the median across 1 tracked listing is $38.84.
Compatible with: M4/AR, AEG
Which hop-up unit fits AEG? Compare fitment & prices →
Where to buy the Retro Arms CNC M4 Hop Chamber: prices at 1 retailer
- Kingdom of Airsoft: $38.84 — Out of Stock
Frequently asked questions about the Retro Arms CNC M4 Hop Chamber
- How much does the Retro Arms CNC M4 Hop Chamber cost?
- The Retro Arms CNC M4 Hop Chamber ranges from $38.84 across 1 retailer. Prices are updated regularly from each store's live catalog.
- Is the Retro Arms CNC M4 Hop Chamber in stock?
- The Retro Arms CNC M4 Hop Chamber is currently out of stock across all 1 tracked retailer. You can set up a price alert to get notified when it becomes available again.
- What is the Retro Arms CNC M4 Hop Chamber compatible with?
- M4/AR, AEG
- Is the Retro Arms CNC M4 Hop Chamber a good aeg hop-up units upgrade?
- The Retro Arms CNC M4 Hop Chamber by Retro Arms is listed in our AEG Hop-Up Units category and is priced from $38.84. We aggregate prices from 1 retailer so you can compare and find the best deal. Check the price comparison table above for current pricing from each store.
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