California compliance
- Status: Legal to own in California.
- Configuration: Featureless, built by WBT: grip fin in place of the pistol grip, pinned and welded muzzle extension for legal overall length. The magazine release works normally, so reloads are the same as anywhere else.
- Magazine: Standard detachable, 10-round.
- Your options: This is the one configuration that works for this rifle; it is not offered the other way. The pinned and welded muzzle extension that brings this rifle to California's minimum overall length is permanent, so the muzzle device cannot be changed.
- Learn more: How fixed-magazine rifles work · How featureless rifles work · Why some rifles can only be built one way
About this rifle
Kel-Tec RDB (20") is a semi-automatic rifle chambered in .223/5.56 with a 20" barrel and a 10-round capacity. Finish: Tan. The California configuration for this model is described above.
Manufacturer details
Through an ingenious and simple arrangement we have solved the main disadvantage of Bullpup rifles; case ejection. Traditional side ejection is not ambidextrous and forward eject, like in the FN 2000 or the Kel-Tec RFB, is quite complex.
The RDB (Rifle Downward-eject Bullpup) features a rotary bolt with a spring loaded ejector and an extractor facing down. The spent case is pulled backwards along the top of the magazine and then ejected through a vertical chute. The hammer is U-shaped and runs outside the chute and above the magazine. Obviously, the bolt travel is longer than traditional designs but well within the ergonomic constraints of a rifle. Other advantages are gravity assisted ejection, higher bolt energy at feeding and a slower full auto rate (when applicable).
The RDB is built around a common steel skeleton formed by the receiver and barrel sub-assemblies. Bolt, bolt carrier, firing mechanism, ejector chute and bolt stop are identical for all variations. The short stroke gas operated piston is fully adjustable for different ammunitions and muzzle attachments.
Specifications
- Brand: Kel-Tec
- Caliber: .223/5.56
- Action: Semi-Automatic
- Capacity: 10
- Barrel: 20 in
- Finish / color: Tan
- Magazines included: 1
- California compliance: Featureless (Grip Fin, Pin & Weld Muzzle Extension)
- Manufacturer part #: RDB20TAN
- UPC: 640832005998
Buying from WBT Guns
- Delivery: Free pickup at our La Mesa store with no transfer fee, or shipment to any California gun store you choose. Select your FFL at checkout.
- Compliance guarantee: Every firearm leaves our shop in the configuration described on this page, function-checked by our compliance team.
- Payment: Pay in full, put 50% down with the balance due in 14 days, or finance with Credova.
- Paperwork: Firearm Safety Certificate, DROS and California's 10-day waiting period apply. We handle each step with you at pickup.
- Questions: Call (619) 667-9453 or email sales@wbtguns.com. FAQ · California Rifle Compliance Guide
WBT Guns is family-owned in La Mesa, California, and has configured firearms for California buyers since 2012.
A note on accuracy. We work hard to keep every listing correct, but specifications, images and compliance details come from many sources and can contain errors or change without notice. Images may show a configuration that is not California-legal. If a detail on this page matters to your decision, call us and we will confirm it against the actual firearm before you order. The compliance information here is general in nature and is not legal advice; California and local laws change, and the configuration described is confirmed at the time of sale. All sales are subject to applicable federal, state and local law and to the buyer's eligibility to purchase.