The Kel-Tec RFB18 .308/7.62 NATO Bullpup Rifle in green is a semi-automatic rifle that packs full-power cartridge performance into a compact, maneuverable package. Designed for both right- and left-handed shooters, it features an innovative forward-ejection system and fully ambidextrous controls. The adjustable gas system helps manage recoil and ensures reliable cycling with various ammunition types, including suppressed use. This rifle accepts standard FAL-type magazines, making it a versatile choice for the serious shooter.
| Manufacturer | Kel-Tec |
|---|---|
| Model | RFB18 |
| Material | Green synthetic stock, aluminum receiver (per manufacturer specs) |
| Compatibility | Standard FAL-type magazines |
| Finish | Green synthetic stock, black metal finish |
| Weight | Approximately 8.1 lbs (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Forward-Ejection System – Ejects spent casings forward, away from the shooter’s face, making it safe and comfortable for left-handed users without any modification.
- Fully Ambidextrous Controls – Safety selector, magazine release, and charging handle are all accessible from either side, so you don’t have to retrain your muscle memory.
- Adjustable Gas System – Lets you dial in the rifle for different loads or when running a suppressor, reducing felt recoil and keeping the action running smooth.
- Standard FAL Magazine Compatibility – Uses widely available and affordable magazines, so you can stock up without hunting for proprietary parts.
- Compact Bullpup Design – Overall length is just over 30 inches with an 18-inch barrel, giving you carbine-like handling with full .308 power.
Who It’s For
This rifle is built for shooters who want a short, handy platform without sacrificing the reach and stopping power of .308 Winchester / 7.62 NATO. It’s ideal for home defense, truck guns, or anyone who appreciates a bullpup’s balance. New gun owners will find the ambidextrous controls forgiving, while experienced shooters will appreciate the forward-ejection design.
Pros & Cons
- Pros: Compact length; full-power .308; ambidextrous; forward ejection; adjustable gas system; uses common FAL mags.
- Cons: Trigger pull is heavier than some aftermarket triggers; the bullpup layout may feel unfamiliar if you’re used to traditional rifles.
Comparison: RFB18 vs. Geissele Super Duty vs. Zev Technologies OZ9
| Feature | Kel-Tec RFB18 | Geissele Super Duty (AR-10) | Zev Technologies OZ9 (Pistol) |
|---|---|---|---|
| Caliber | .308 / 7.62 NATO | .308 / 6.5 Creedmoor | 9mm |
| Action | Semi-auto bullpup | Semi-auto AR-10 | Semi-auto pistol |
| Weight | ~8.1 lbs | ~8.5 lbs | ~1.5 lbs |
| Barrel Length | 18 in | 16 in | 4.5 in |
| Overall Length | ~30.5 in | ~34 in | ~7.5 in |
| MSRP | $1749.06 | ~$2,200 | ~$1,800 |
FAQ
What magazines does the Kel-Tec RFB18 use?
It accepts standard FAL-type magazines. These are widely available and affordable, so you can stock up easily.
Is this rifle safe for left-handed shooters?
Yes. The forward-ejection system pushes spent casings out the front of the rifle, away from your face. The controls are also fully ambidextrous, so lefties can operate it without any special parts.
Can I run a suppressor on the RFB18?
Yes. The adjustable gas system lets you tune the rifle for suppressed use, which helps reduce recoil and keeps the action cycling reliably.
What’s the barrel length?
It has an 18-inch barrel, which gives you a good balance of velocity and compactness in a bullpup package.
Is the trigger adjustable?
The trigger is not user-adjustable, but it is consistent and predictable. Some owners choose to upgrade to an aftermarket trigger for a lighter pull.
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Browse more in our Semi Auto Rifles or check out Bullpup Rifles and .308 Rifles.
Last updated: April 2026. According to industry data, bullpup rifles represent about 12% of the semi-auto market in the U.S., with the RFB18 being one of the few .308 options available.
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