Autococker

Autococker (also styled AutoCocker or Auto Cocker) is a family of closed-bolt, semiautomatic paintball markers originally developed by Bud Orr and manufactured by Worr Game Products (WGP). Derived from the WGP Sniper pump-action marker, the Autococker uses a pneumatic mechanism to automatically recock its firing system after each shot.[1][2]

Introduced around 1990, the Autococker became one of the most influential tournament paintball marker platforms of the 1990s and early 2000s. It was particularly associated with Bob Long and the Ironmen, who used the design during the early development of professional semiautomatic tournament paintball.[1][3]

The Autococker became notable for its mechanical complexity, customisation potential and extensive aftermarket. Numerous manufacturers produced custom bodies, pneumatic components, trigger frames, regulators and electronic conversion systems for the platform.[2][4]

Major companies associated with Autococker development included Belsales, Shocktech, DYE Precision, Planet Eclipse, FreeFlow and RaceGun.[4][5]

The platform was a principal competitor to the Automag manufactured by Airgun Designs and later competed with electronically controlled tournament markers.

Autococker
Name	Autococker
Alternative names	AutoCocker, Auto Cocker, 'Cocker
Type	Semiautomatic paintball marker platform
Original manufacturer	Worr Game Products
Designer	Bud Orr
Country of origin	United States
Development	Late 1980s
Introduction	Approximately 1990
First documented major tournament appearance	March 1991, Lone Star Open
Predecessor	WGP Sniper
Operating system	Closed-bolt, stacked-tube, mechanically fired, pneumatically recocked
Valve system	Poppet valve
Propellant	CO2 or compressed air
Feeding	Gravity-fed hopper; later compatible with force-fed electronic loaders
Firing modes	Mechanical semiautomatic; electronic modes on converted models
Barrel interface	Autococker threading
Notable variants	Standard Autococker, MiniCocker, Evolution, Shocktech, FreeFlow, Eclipse, RaceGun, electronic Autocockers
Associated teams	Ironmen

History

Origins in the WGP Sniper

The Autococker developed from the WGP Sniper, a pump-action paintball marker designed by Bud Orr.

Orr began developing the original Sniper around late 1986 or early 1987.[1]

The marker used an aluminium body incorporating mechanical principles and components derived from Sheridan paintball equipment.

Unlike many early paintball markers, the Sniper featured a removable barrel and a purpose-built receiver.

Orr established Worr Game Products to manufacture and distribute his equipment.

The Sniper became an important early tournament pump marker.

Sniper II

WGP subsequently developed the Sniper II.

The Sniper II was documented in the April 1990 issue of Paintball Sports International.[6]

Historical research suggests that the model was introduced during late 1989.

Its improvements included an extruded aluminium body, integrated sight rail and revised bolt system.

The Sniper II provided the basis for the early Autococker.

Development of pneumatic recocking

During the late 1980s, paintball manufacturers began experimenting with semiautomatic operation.

Orr sought to eliminate the manual pumping action required by the Sniper.

He developed a system in which regulated gas pressure operated a pneumatic cylinder connected to the marker's cocking mechanism.

The resulting design became known as the Autococker.

In a 2004 interview with WARPIG, Orr described observing an experimental pneumatically operated Sheridan marker at SC Village in 1988.[3]

The experience influenced his development of the Autococker.

The first prototypes underwent substantial modification before the system became commercially practical.

Early prototypes

The original Autococker prototypes were mechanically crude compared with later production models.

Orr reported that one early prototype cycled with enough force to eject its bolt from the rear of the marker.[3]

He subsequently refined the pneumatic components and timing mechanism.

The early design was sometimes described as an Autococking Sniper.

The conversion retained the Sniper's basic firing system while replacing manual pump operation with pneumatic recocking.

Introduction

Historical sources differ slightly on the Autococker's original introduction date.

Some retrospective accounts place its release in 1989.

WGP's own historical manual identifies 1990 as the introduction year.[7]

The available evidence supports development during 1988–1990, followed by documented tournament use in 1991.

The precise date of the first commercial sale has not been conclusively established.

Lone Star Open, 1991

In March 1991, Bob Long's Ironmen used Autocockers at the Lone Star Open in Texas.[1]

Paintball History identifies this event as an early documented competitive appearance of the marker.

The Ironmen became one of WGP's most important early sponsored teams.

Their use of the Autococker helped establish its reputation as a high-performance tournament marker.

Mechanical design

Overview

The Autococker is a closed-bolt, stacked-tube paintball marker.

Its upper tube contains the bolt and breech.

The lower tube contains the hammer, firing valve and associated springs.

The firing system is mechanically similar to the earlier WGP Sniper.

The principal difference is the addition of a pneumatic mechanism that performs the recocking operation automatically.[2]

Closed-bolt operation

In a closed-bolt marker, the paintball is chambered before the firing mechanism is activated.

The bolt remains forward when the marker is ready to fire.

When the trigger is pulled, the hammer strikes the valve.

Gas released through the valve propels the paintball through the barrel.

The pneumatic system then opens the bolt, recocks the hammer and prepares the marker for the next shot.

The bolt returns to its closed position before the next firing cycle.

Firing valve

The Autococker uses a poppet-style firing valve.

The valve is located in the lower tube of the marker body.

When the trigger releases the hammer, the hammer moves forward under spring pressure.

It strikes the valve stem, allowing gas to enter the firing chamber.

The gas travels through the bolt and propels the paintball.

Front pneumatic assembly

One of the Autococker's most recognisable features is its front pneumatic assembly.

The assembly traditionally includes:

A low-pressure regulator
A pneumatic control valve
A pneumatic ram
Pneumatic hoses
A front mounting block

The system replaces the manual pump mechanism of the WGP Sniper.

Low-pressure regulator

The low-pressure regulator, commonly abbreviated LPR, supplies gas to the recocking system.

It reduces the pressure available to the pneumatic components.

The LPR operates separately from the main firing pressure.

Aftermarket low-pressure regulators became popular upgrades.

One of the most influential was the Rock regulator manufactured by Palmer's Pursuit Shop.

Pneumatic control valve

The pneumatic control valve directs gas to the recocking ram.

The valve is mechanically connected to the trigger through a timing rod.

As the trigger moves, the valve changes the direction of gas flow.

This causes the ram to move between its forward and rearward positions.

The component is commonly called a three-way valve in paintball terminology.

Some technical descriptions refer to it as a four-way valve because of differences in pneumatic port-counting conventions.[8]

Pneumatic ram

The ram is a double-acting pneumatic cylinder.

It moves the cocking mechanism forward and backward.

The ram is connected to the back block through a pump arm.

When activated, it moves the bolt and cocking rod rearward.

The movement recocks the hammer and opens the breech.

The ram then returns the bolt to its forward position.

Back block

The back block connects the bolt and cocking rod.

It moves rearward during the recocking cycle.

The movement of the back block became one of the Autococker's most distinctive visual characteristics.

Custom back blocks were produced by numerous aftermarket manufacturers.

Timing rod

The timing rod connects the trigger mechanism to the pneumatic control valve.

Its adjustment determines when the recocking mechanism activates during the trigger pull.

Correct timing is essential for reliable operation.

An incorrectly adjusted timing rod may cause the marker to recock too early or too late.

Firing cycle

A conventional mechanical Autococker operates through the following sequence.

The marker rests with its bolt closed and hammer cocked.
The player begins pulling the trigger.
The sear releases the hammer.
The hammer strikes the firing valve.
Gas is released and propels the paintball.
Continued trigger movement actuates the pneumatic control valve.
The ram moves the back block rearward.
The bolt opens and the hammer is recocked.
A new paintball enters the breech.
Releasing the trigger returns the ram and bolt forward.
The marker is ready to fire again.

The sequence depends on the relationship between mechanical trigger movement and pneumatic timing.

Unlike a conventional blowback marker, the Autococker does not rely on firing-gas pressure directly driving the bolt rearward.

Its recocking mechanism is separately controlled through the pneumatic assembly.

Timing and maintenance

Mechanical timing

Autococker timing refers to the adjustment of the relationship between firing and recocking.

The marker must fire before the bolt begins opening.

If the pneumatic system activates too early, the bolt may open while the firing valve is releasing gas.

This can reduce efficiency and interfere with normal operation.

The timing rod and trigger adjustments are important components of the process.

Hammer lug

The hammer lug determines the point at which the trigger sear releases the hammer.

Adjusting the lug changes the firing point within the trigger pull.

The lug must be coordinated with the pneumatic timing.

Recocking pressure

The low-pressure regulator must supply sufficient pressure for the ram to cycle reliably.

Excessively low pressure can prevent the marker from recocking.

Excessive pressure can increase mechanical stress and unnecessary operating force.

Maintenance reputation

The Autococker developed a reputation for requiring more technical knowledge than many competing markers.

Its performance depended on correct adjustment of several interacting components.

However, a correctly configured Autococker could operate reliably without constant adjustment.

The platform became particularly popular among players interested in mechanical tuning and customisation.

Tournament paintball

Ironmen

The Autococker's early success was closely associated with Bob Long and the Ironmen.

The team became one of WGP's earliest major tournament sponsorship partners.

The Ironmen's use of the Autococker helped promote the marker to competitive players.

The relationship also encouraged further technical development.

Early tournament adoption

During the early 1990s, the Autococker became increasingly popular among competitive paintball teams.

Its closed-bolt operation and customisation potential appealed to players seeking high-performance equipment.

Independent airsmiths developed modifications to improve reliability, trigger feel and operating efficiency.

The Autococker became a common sight at major American tournaments.

Autococker versus Automag

The Autococker's principal early competitor was the Automag manufactured by Airgun Designs.

The Automag was developed by Tom Kaye.

The two markers used substantially different operating systems.

The Autococker used a mechanically controlled pneumatic recocking system.

The Automag used a regulated gas-powered blow-forward mechanism.

The rivalry became an important feature of tournament paintball equipment culture during the 1990s.

Players frequently debated the relative performance, reliability and maintenance requirements of the two platforms.

Professional competition

The Autococker remained widely used in professional tournament paintball during the 1990s.

Its popularity contributed to the development of a large aftermarket.

By the early 2000s, electronic trigger systems and newer marker designs increasingly influenced competitive equipment choices.

Electronic Autococker conversions allowed the platform to remain competitive during this transition.

Aftermarket development

Customisation

The Autococker became one of the most extensively customised paintball marker platforms.

Independent manufacturers produced replacement components for almost every part of the marker.

These included:

Custom bodies
Trigger frames
Low-pressure regulators
Pneumatic control valves
Rams
Bolts
Back blocks
Pump arms
Firing valves
Hammers
Cocking rods
Electronic trigger systems

The availability of these components allowed players to build highly individualised markers.

Custom bodies

Custom Autococker bodies became particularly popular during the 1990s.

Manufacturers modified standard WGP bodies or produced proprietary body designs.

Changes included decorative milling, weight reduction and altered component arrangements.

High-end custom Autocockers became premium tournament equipment.

MiniCocker

The MiniCocker was a shortened Autococker configuration.

It used a reduced-length front section and modified pneumatic mounting arrangements.

The design was intended to reduce overall size and weight.

MiniCocker configurations became popular among players seeking compact equipment.

Palmer's Pursuit Shop

Palmer's Pursuit Shop supplied aftermarket components for the Autococker.

Its Rock low-pressure regulator became a particularly well-known upgrade.

The company also performed custom Autococker modifications.

The relationship is historically significant because Glenn Palmer and Bud Orr were both involved in the development of early pneumatic semiautomatic paintball technology.

Major custom manufacturers

Belsales

Belsales was a British manufacturer and specialist airsmithing business.

It became known for producing high-end custom Autocockers under the Evolution name.

The Evolution series became one of the most recognisable European Autococker variants.

Belsales also produced aftermarket pneumatic components and other upgrades.

Shocktech

Shocktech was associated with high-end Autococker customisation.

Its products included custom bodies, pneumatic components and mechanical upgrades.

Shocktech Autocockers became prominent examples of the custom tournament marker market.

DYE Precision

DYE Precision produced custom Autococker designs during the 1990s and early 2000s.

Its products included premium milled bodies and complete custom markers.

The company's Autococker work formed part of its early expansion into high-end tournament equipment.

Planet Eclipse

Planet Eclipse developed custom Autococker products and electronic conversion systems.

Its involvement included custom body designs and the E-Blade electronic trigger system.

The company became an important manufacturer of high-performance Autococker equipment during the early 2000s.

FreeFlow

FreeFlow became associated with custom Autococker manufacturing and technical modifications.

Its products included custom-milled bodies and complete markers.

FreeFlow was one of several specialist companies that helped sustain the Autococker aftermarket.

RaceGun

RaceGun developed an electronic Autococker conversion system.

The system replaced the conventional mechanical trigger arrangement with electronically controlled firing and recocking components.

RaceGun was among the manufacturers that helped adapt the Autococker to electronic tournament paintball.

Electronic Autocockers

Development

During the late 1990s and early 2000s, electronically controlled markers became increasingly common in tournament paintball.

The mechanical Autococker's two-stage trigger pull imposed limitations on firing speed.

Electronic conversions replaced mechanical timing with electronic control.

This allowed shorter trigger movement and more consistent cycling.

RaceGun conversion

RaceGun developed an electronic conversion for the Autococker.

The system used electronic components to control firing and pneumatic recocking.

A WARPIG technical review documented the design and explained its advantages over mechanical timing.[8]

The conversion was intended to improve firing speed and consistency.

Planet Eclipse E-Blade

The E-Blade was an electronic trigger system developed by Planet Eclipse.

It became one of the most widely recognised Autococker electronic conversions.

The E-Blade replaced the conventional mechanical trigger frame with an electronic system.

It used a solenoid to control the pneumatic recocking mechanism.

The system also incorporated electronic firing controls.

Planet Eclipse displayed E-Blade Autococker products at the 2003 PSP World Cup.[9]

Electronic timing

Electronic conversions allowed the firing and recocking cycles to be controlled through programmable settings.

This reduced dependence on mechanical trigger timing.

It also allowed the use of electronic firing modes appropriate to the tournament regulations of the period.

The systems helped extend the competitive life of the Autococker platform.

Autococker barrel threading

Thread standard

The Autococker used a removable barrel with a distinctive threaded interface.

The design became widely adopted by other paintball marker manufacturers.

It is commonly known as Autococker threading.

Industry adoption

Autococker threading became one of the most common barrel interfaces in paintball.

Numerous manufacturers adopted the standard for markers unrelated to the original Autococker operating system.

The widespread adoption of the interface became one of the platform's most enduring technical legacies.

Manufacturing and ownership

Worr Game Products

The original Autococker was manufactured by Worr Game Products.

WGP developed numerous production variants during the 1990s and early 2000s.

The company also sold replacement parts and upgrade components.

Its manufacturing operations expanded substantially as demand increased.

K2 acquisition

On 19 April 2004, K2 Inc. acquired substantially all the assets of Worr Game Products and All-Cad Manufacturing.[10]

The acquisition brought WGP into K2's portfolio of sporting-goods brands.

K2 already owned several paintball equipment brands, including JT USA and Brass Eagle.

The transaction represented a major consolidation within the paintball equipment industry.

Consolidation

In December 2004, K2 announced the consolidation of WGP and JT USA operations.

Bud Orr was identified as president of the combined operation.[11]

The consolidation brought business functions together at the WGP facility in Corona, California.

Later production

Autococker production and branding underwent changes following the K2 acquisition and subsequent consolidation of the paintball equipment industry.

The platform's influence continued through aftermarket components, custom manufacturers and later derivative designs.

The precise production dates of individual models should be documented separately rather than treating all Autococker variants as a single uninterrupted production line.

Related and derivative designs

WGP Sniper

The WGP Sniper was the pump-action predecessor of the Autococker.

Both designs shared a common mechanical foundation.

The Autococker replaced the Sniper's manual pump operation with pneumatic recocking.

Pump conversions

Some Autococker bodies were subsequently converted back to pump-action operation.

These conversions removed the pneumatic recocking assembly and installed a manual pump mechanism.

They became popular among players participating in pump-only events.

Mechanical revival

Interest in mechanical paintball equipment continued after electronically controlled markers became dominant in professional competition.

The Autococker remained popular among collectors, custom builders and players interested in traditional mechanical equipment.

Specialist manufacturers continued to produce replacement components and custom builds.

Collecting and restoration

Vintage equipment

Early Autocockers have become collectible paintball equipment.

Collectors distinguish between production generations, body styles and original component configurations.

Original WGP markers and period custom models are particularly significant.

Serial numbers

Autococker serial numbers can help identify approximate manufacturing periods.

However, serial-number records are incomplete.

Some early markers incorporated transitional components or were extensively modified.

Historical identification therefore often requires examination of the body, internal components and original documentation.

Restoration

Restoring an Autococker may involve replacing worn pneumatic hoses, seals, regulators and mechanical components.

Original components are sometimes difficult to obtain.

Specialist airsmiths and collectors maintain knowledge of historical configurations and operating procedures.

The platform remains an important part of vintage paintball equipment collecting.

Historical significance

The Autococker is significant in paintball history for several reasons.

It helped establish semiautomatic markers in competitive paintball.
It was closely associated with the Ironmen during the early 1990s.
It became a principal competitor to the Automag.
It supported one of the largest aftermarket industries in paintball equipment.
It encouraged the development of specialist airsmithing businesses.
It provided a foundation for numerous custom tournament markers.
It was adapted to electronic operation through systems such as RaceGun and E-Blade.
Its barrel threading became a widely adopted industry standard.
It remains an important platform for collectors and mechanical paintball enthusiasts.

The Autococker's influence extended beyond its original manufacturer.

Its modular design encouraged independent innovation and contributed to the development of a specialist paintball equipment industry.

Timeline

Year	Event
1986–1987	Bud Orr develops the original WGP Sniper
1987	Worr Game Products established
1988	Orr begins developing pneumatic recocking concepts
1989–1990	Early Autococker prototypes developed and demonstrated
1990	Autococker introduced according to WGP's historical documentation
March 1991	Ironmen use Autocockers at the Lone Star Open
Early 1990s	Autococker becomes increasingly popular in tournament paintball
1990s	Major aftermarket and custom manufacturing industry develops
1990s	Autococker and Automag become major competing tournament platforms
Late 1990s	Development of electronic Autococker conversion systems
Early 2000s	Electronic Autocockers become established in tournament competition
2003	Planet Eclipse displays Nexus E-Blade Autococker equipment at the PSP World Cup
19 April 2004	K2 Inc. acquires WGP and All-Cad assets
December 2004	WGP and JT USA operations consolidated
2000s	Autococker platform competes with newer electronic tournament markers
2010s–2020s	Continued interest in custom Autocockers, pump conversions and restoration

References

"Autococker", Paintball History. Historical research documenting the Sniper, early Autococker development, WGP history and the Ironmen's 1991 tournament appearance.
"WGP Early Autococker", Paint Magazine. Historical equipment profile explaining the Autococker's development and pneumatic operating system.
"WGP Acquired by K2", WARPIG, April 2004. Contemporary interview with Bud Orr documenting the Autococker's early development and Ironmen sponsorship.
"RaceGun Autococker Conversion", WARPIG. Technical article documenting electronic Autococker development and the platform's aftermarket.
"Eclipse Autococker", WARPIG. Technical review discussing mechanical timing, pneumatic operation and electronic conversion.
"Introduction of the WGP Sniper 2", Paintball History, 5 July 2015. Examination of the April 1990 Paintball Sports International product feature.
"WGP Autococker Manual", Worr Game Products. Historical manufacturer documentation describing Bud Orr, the Sniper and the Autococker's introduction.
"RaceGun Autococker Conversion", WARPIG. Detailed explanation of the firing cycle, pneumatic recocking and electronic timing.
"PSP World Cup 2003 Trade Show", WARPIG, 2003. Contemporary coverage documenting Planet Eclipse Nexus E-Blade Autococker equipment.
"K2 Inc. Form 8-K", United States Securities and Exchange Commission, April 2004. Primary corporate filing confirming the acquisition of Worr Game Products and All-Cad Manufacturing.
"K2 Consolidates Paintball Unit", SGB Media, 16 December 2004. Contemporary report documenting the consolidation of WGP and JT USA operations.

External links