The Kel-Tec RFB is a bullpup semi-automatic rifle chambered in 7.62x51mm (.308 Win) with an 18-inch barrel. The bullpup layout puts the action behind the trigger, keeping overall length down while preserving a full-length barrel. What separates the RFB from most bullpups is the forward ejection system -- spent casings feed into a tube above the barrel and eject out the front, which means left-handed shooters don't get brass in the face. 
 

Key Specifications 

• Barrel Length: 18 inches 
• Caliber: 7.62 x 51 (.308 Win) 
• Capacity: 20 rounds 
• Weight: 8.1 lbs (129.6 oz) 
• Condition: New in Box 
• Finish Color: Flat Dark Earth 
• Manufacturer: Kel-Tec 
• Model Number: RFB18CERA 
   

Features 

The receiver is 4140 steel and the barrel has a salt bath nitride finish for corrosion resistance. The Flat Dark Earth finish is standard on this variant. At 8.1 lbs, the RFB is not a lightweight rifle, but the weight is distributed differently than a conventional layout -- some shooters adapt quickly, others find the balance takes getting used to. The 20-round capacity uses standard FAL-pattern magazines.

The RFB generates consistent interest because the forward ejection system is genuinely uncommon, and left-handed shooters in particular tend to find it appealing. The .308 caliber gets praise for versatility across hunting and tactical use, and most owners report good reliability after the initial break-in.

The balance is a recurring topic: the bullpup layout feels different from a conventional rifle and some shooters adapt faster than others. Feeding or extraction issues are occasionally mentioned, mostly tied to specific ammunition types or early rounds through a new gun. Aftermarket support is limited compared to more popular platforms, which limits customization options. The Flat Dark Earth finish is well-received among the tactical-aesthetic crowd. Most owners consider the price reasonable given the forward ejection design and the .308 chambering.