Sero Gepard GM6 Lynx Lightweight Bullpup Semi-Auto .50 BMG Anti-Materiel Rifle: Meet the Hungarian Mobile Light Infantry Artillery Sensation

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By David Crane
defrev (at) gmail (dot) com

February 28, 2011

DefenseReview.com (DR) member “VPMudde1991” has posited in the “comments” section of our article on the Leader 50 BMG bullpup semi-auto .50BMG (12.7x99mm NATO) anti-materiel/sniper rifle that the Leader 50 is perhaps reminiscent of the Hungarian Sero Gephard GM6 Lynx semi-auto bullpup 12.7x108mm Russian / .50 BMG anti-materiel rifle, and has provided a link to The Firearm Blog’s blurb on it. However, unlike the short-stroke piston-driven Leader 50, the Gepard GM6 Lynx operates via long recoil operation where the barrel recoils/reciprocates along with the bolt carrier group, just like on the Barrett semi-auto .50-caliber rifles, including the Barrett XM500 prototype bullpup semi-auto .50 BMG, which DR reported on in June 2006.

Being long-recoil operated, the Gepard GM6 Lynx is intended for the anti-materiel role, rather than the sniping role, whereas the goal of the Leader 50 is to fulfill the same role as the Accuracy International (AI) AS50 .50BMG semi-auto anti-materiel/sniper rifle, which is to approach the accuracy of battle-proven bolt-action .50 BMG anti-materiel/sniper rifles like the excellent AI AW50 (Arctic Warfare 50) and McMillan TAC-50. You can watch Defense Review owner/editor David Crane talking about The TAC-50 on the “Sniper Rifles” episode of the show Ultimate Weapons on The Military Channel.

Also, the Gepard GM6 Lynx weighs more than the Leader 50, and its box magazine only holds 5 rounds, compared to the Leader 50’s 10-round box mag.

DefenseReview will try to find out if the Gepard GM6 Lynx .50BMG rifle will be available to civilian tactical shooters in the U.S. at some point. We certainly hope so.

The following information and specs on the Gepard GM6 Lynx semi-auto bullpup anti-materiel rifle come directly from the Sero website:


Purpose of the rifle

Highly-efficient, special, multi-purpose weapon for land-, air-, territorial and independent armed forces. Its task is to destroy – with its shell, which delivers significantly (5-8 times) greater energy comparing with the ammunition of the conventionally used small arms – the enemy’s important pinpoint targets, armoured rifle troops, light shelters and buildings, radio- electronic constructions, missile launchers and hovering helicopters within a 600-800m shooting range.

In case of urban warfare/conflict it can be used for demolishing the enemy’s firing positions in buildings, weapons under cover and armoured rifle troops, which are manoeuvring on the streets. It is suitable both for squads and independent units. Due to its small arm categorisation, its weight and portability, make it an ideal heavy weapon for the parachute, airmobile and territorial troops. It is also a highly effective small arm in repelling terrorist action. As this type of action is common in the field today, we believe it would play a key role according to the new North-Atlantic strategy, considering its significant destructive force, combined with formidable accuracy. Important hostile targets can be neutralised safely within a 1500m range.

It is also a highly efficiency, bodyguard-weapon for protection of important target personnel, which can extend significantly the firing range of the safe-zone around the target person, as an attack by a light armoured combat vehicle can be repulsed – by quick fire – within 300m. It is also suitable to repulse the so-called, “self-propelled (suicide) bombs,” which are installed in vehicles, with even one shot to the power of the vehicle outside the effect of the (non-nuclear) bomb.

Weapon Specs:

Weight including magazine [dry/empty]: 11.5 kg
Length in firing position: 1126mm
Transporting length: 928mm
Height of sighting line: 360mm
Muzzle energy: Russian caliber: ~14.5 Kj /
.50 Browning: ~14.5 Kj
Muzzle velocity: Russian caliber: ~ 780 m/s /
.50 Browning: ~ 870 m/s
Length of barrel: 730 mm
Magazine capacity: 5 rounds
Optional sight: 3-12 x 50 or 5-25 x 56
Optional camera with eye monitor (EOP): Sero Development, aming: 10-300m
Piercing capacity: 250 mm concrete wall from 90°angle from 100 m
(with Russian caliber)
Armour piercing: 20mm [rolled homogenous] armor from 100m
(with Russian caliber)
Rate of fire: 5 shots < 3 seconds
Maximum range: 2000+ meters
Effective range: 1m2 target from 1500m”

Sero Gepard GM6 Lynx Anti-Materiel Rifle Data Sheet (PDF Format)

Sero Gepard GM6 Lynx Rifle Videos:

Company Contact Info:

Sero Ltd.
Hungary, Budapest 1106 Fehér- str. 10 3/A
Phone: +36 (1) 433-2181
Fax: +36 (1) 433-2182
Email: info@sero.hu
Website: http://www.sero.hu

Photo Courtesy: Sero

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Sero Gepard GM6 Lynx Lightweight Bullpup Semi-Auto .50 BMG Anti-Materiel Rifle: Meet the Hungarian Mobile Light Infantry Artillery Sensation by

About David Crane

David Crane started publishing online in 2001. Since that time, governments, military organizations, Special Operators (i.e. professional trigger pullers), agencies, and civilian tactical shooters the world over have come to depend on Defense Review as the authoritative source of news and information on "the latest and greatest" in the field of military defense and tactical technology and hardware, including tactical firearms, ammunition, equipment, gear, and training.

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