Aftermarket regulator · Altaros · Premium
Altaros Regulator — Beeman Chief II / Chief 2 Plus / Raider
The easiest regulator install in the catalog. Degas, slide it down the tube with the included rod, adjust 100-150 bar with a flathead. The Beeman Chief upgrade.
Image credit: Airgun Archery Fun
Quick take
The Altaros drop-in regulator for the Beeman Chief II family — fits the Chief II, Chief 2 Plus (Model 1335) and Beeman Raider. 15 orders, 100% positive. The partner calls Altaros regulators "the easiest to install" — degas, remove fill cap, slide the regulator down the tube with the included threaded rod. Adjust between 100 and 150 bar with a flathead screwdriver: counterclockwise (left) for 150 bar, clockwise (right) for 100 bar. Currently out of stock.
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Specifications
Key specs
| Maker | Altaros — Czech Republic |
| Compatible rifles | Beeman Chief II, Beeman Chief 2 Plus (Model 1335), Beeman Raider |
| Output pressure range | 100 bar to 150 bar — adjustable via flathead |
| Adjustment direction | Counterclockwise (left) = 150 bar, clockwise (right) = 100 bar |
| Install method | Easiest in catalog — degas, remove fill cap, slide regulator down tube with included threaded rod |
| Adjustment in-rifle | Use included rod to pull regulator forward, flathead adjust, push back |
| Install note | Swap O-ring from bag with the one preinstalled on regulator for proper seal (verified buyer note) |
| Buyer rating | 100% positive on 15 orders |
| Stock | Out of stock at time of writing |
The Hunt & Live take
Why this regulator earns the pick
Altaros designed this drop-in around the simplest possible install workflow — and the Beeman Chief II family is the platform that benefits the most from that approach. The Chief II is a budget-tier PCP at the partner; the buyer profile is somebody who wants a meaningful upgrade without sending the rifle to a smith.
The whole install is: degas the rifle, remove the front fill cap, slide the Altaros down the pressure tube with the included threaded rod, screw the fill cap back on. No drilling. No machining. No special tools. The verified buyer review on the partner page captures the install experience: “Fits the Beeman Chief II Plus (Model 1335) perfectly and work well. Easy to adjust too. Need to swap the o-ring in the bag with the one already installed on the regulator - then it fits and seals up nice.”
The 100-150 bar adjustable range is the right window for the Chief II family. The rifles max out at 250 bar fill; setting the regulator at 130 bar gives roughly 40-50 shots of identical velocity per fill versus the 15-20 shot consistent window of the stock unregulated valve.
What it pairs with
- Beeman Chief II — the original host rifle
- Beeman Chief 2 Plus (Model 1335) — Plus variant, same fit (per verified buyer review)
- Beeman Raider — newer Raider variant in the same family
- Beeman QB Chief — same architecture, this regulator fits
Honest trade-offs
Currently out of stock. Altaros production cycles through; email Wes at support@airgunarcheryfun.ca for ETA.
O-ring swap on install. The verified buyer notes the bag O-ring fits better than the preinstalled one — small detail, but worth knowing before you put the rifle back together and find it leaks.
Adjustment requires re-disassembly. Unlike a side-mounted regulator with external adjustment, this one sits inside the pressure tube. To change the setting you degas the rifle, pull the regulator back up the tube with the included rod, adjust, push it back down. Plan to dial in your pressure once and leave it.
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