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Sniper Rifles
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Kel-tec RFB rifle (USA)
Kel-tec 5,56mm SUB-16 prototype personal defense weapon of early 1990s, which served as a starting point for RFB
image: Kel-tec
Kel-tec RFB 'Target' rifle with heavy-profile 32-inch barrel, telescope sight, folding bipod and 10-round magazine
image: Kel-tec
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Kel-tec RFB 'Carbine' with 18-inch barrel, 20-round magazine and red-dot sight, compared to
FN FAL Para
rifle.
image: Kel-tec
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Kel-tec RFB
USSR / Russia
Dragunov SVD
SVU
VSS
SV-98
SV-99
Kel-tec RFB rifle partially disassembled
image: Kel-tec
Diagram displaying forward ejection system of the Kel-tec RFB rifle
image: Kel-tec
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VSK-94
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SIG SG550 Sniper
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Zastava M76
all texts and some pictures
copyright (c) 1999-2007
by Max R. Popenker
and can not be used without
author permission
Contact E-Mail
ICQ:
Bolt of the SRT-8 (Kel-tec RFB prototype) rifle, with cartridge held in upper (ejection) position by dual pivoting
extractors / ejectors.
image: Kel-tec
RFB Carbine
RFB Sporter
RFB Target
Caliber:
7,62x51mm / .308 Winchester
Barrel length
457 mm / 18"
610 mm / 24"
813 mm / 32"
Overall length
661 mm / 26"
813 mm / 32"
1016 mm / 40"
Weight, unloaded
3,67 kg / 8,1 lbs
3,95 kg / 8,7 lbs
5,1 kg / 11,3 lbs
Magazine capacity
10 or 20 rounds
The RFB rifle is a very interesting development of the Kel-tec CNC Industries company, USA. First displayed during
ShotShow 2007 expo, this weapon is now (spring 2007) in advanced development; mass production scheduled to early
2008. The RFB is an acronym which stands for Rifle, Forward ejection, Bullpup. It is a brainchild of the George
Kellgren, the chief designer of the Kel-Tec. George Kellgren was long involved into development of advanced bullpup
rifles, starting with unorthodox
Interdynamics MKR rifle
of late seventies. During following decades, Kellgren designed
a number of bullpup weapons, featuring first bottom and then forward extraction. During early nineties Kellgren
designed a compact bullpup 'personal defense' weapon, designated SUB-16. This was a gas-operated semi-automatic
weapon, firing .223 Remington ammunition and featuring forward ejection, with dual tilting extractors / ejectors used to
move fired cartridge up from the breech face and push it into ejection chute above the barrel. SUB-16 was a promising
and really novel design but the infamous Assault Weapons Ban of 1994 effectively has killed it. Nevertheless, the
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forward ejection concept was not forgotten, and in around 2003 Kel-tec initiated development of an accurate,
semi-automatic rifle with long barrel and compact bullpup layout. In 2005, Kel-tec team began development of the
SRT-8, the 7,62x51 semi-automatic sniper rifle. After much experimentation Kel-tec team successfully solved most
problems associated with forward ejection system, and in November 2006 the SRT-8 project has changed its name to
RFB. Original model designations 'Sniper', 'Hunter' and 'Battle' were also changed to less menacing 'Target', 'Sporter'
and 'Carbine' respectively. As of now (April 2007), Kel-tec is tooling up for first pre-production batch of RFB. At the
same time, Kel-tec is investigating smaller- versions of the same design, adapted to 'intermediate' calibers such as
7,62x39, 5,56x45 / .223, 6,5 Grendel or 6,8x43 Rem SPC. This weapon will be significantly lighter and more compact,
retaining same ambidexterity and high barrel length to overall length ratio of the RFB.
It must be noted that at the present time the only fully ambidextrous bullpup rifle with forward ejection is the Belgian
FN
F2000 assault rifle
and its civilian derivative
FS2000
, both available only in 5,56mm / .223 caliber.
The key advantage of the RFB is that it provides a compact and fully ambidextrous package, combined with increased
barrel length, thus allowing for increasing ballistic performance using same cartridge (as compared to rifles with
traditional layout).
Kel-tec RFB rifle is gas-operated, using short-stroke gas piston located above the barrel. Gas system is fitted with
manual gas regulator, located at the front of gas block. Bolt system is somewhat unusual, as the long bolt carrier has
an inverted U-shaped cross-section, and runs above the barrel and ejection chute. The bolt is hinged to the rear of the
carrier. Locking is achieved by tipping the rear of the bolt down, to engage locking recesses in barrel extension.
Forward ejection system includes dual extractors / ejectors, pivotally attached at either side of the bolt. Upon final stage
of the bolt opening movement, those extractors are cammed up, to bring the fired cartridge above the barrel and in line
with ejection chute above it. Upon closing movement of the bolt, it strips the fresh cartridge from magazine and feeds it
into the chamber, simultaneously pushing the fired case forward and into ejection chute. Upon final closing movement
of the bolt ejectors are cammed down to release fired case and to grip on the base of the fresh cartridge in the
chamber. Fired cases then remain in the ejection chute until manually shaken out of it or pushed out by subsequent
cases. Special provisions are made to avoid empty cases bounced back from chute and into receiver. Bolt system
features dual return spring installed on captive spring guides. Upon disassembly, bolt group along with recoil springs is
removed from the gun as one unit. Charging handle is reciprocating and can be installed on either side of the gun.
The rest of the gun is mounted on the barrel, which forms the backbone of the weapon, using four captive cross-pins.
Forend, pistol grip / trigger pack / magazine housing and receiver cover / buttstock are made from impact-resistant
polymer. Basic disassembly of the RFB requires no special tools other than a cartridge or other pointed object, which is
used to push out connecting pins.
Firing unit is hammer-fired, and features an interesting system which provides consistent and crisp trigger pull. In
essence, this system keeps the sear next to the trigger, and the necessary long linkage is located between sear and
hammer, not impairing the trigger pull. The trigger is fully adjustable. Manual safety levers are located above pistol grip
at either side of the gun. Feed is using "metric"
FN FAL
magazines, which are readily available on the market. There
are no open / iron sights as standard on RFB rifles; instead, a Picatinny-type rail is rigidly attached to the barrel. This
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rail will accept any sighting equipment with appropriate mounting interface.
Special thanks to George Kellgren for invaluable information and images.
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