This page contains information on the feedneck specifications used on paintball markers. Multiple markers use the same feedneck dimensions, so this page was created to reduce redundancy between marker pages.
Warning: Although the same feedneck specification may be shared between multiple markers, feednecks are often incompatible between different markers due to the amount of material surrounding the feedport. For instance, private label markers may use different cosmetic milling around their marker breech, which may prevent a "stubby" feedneck from being installed on a marker with significantly more material around its feedport. In the past, feednecks were only categorized by their threading, but this is NOT enogh information to determine whether a feedneck will fit a particular marker body due to height differences.
| Thread specification: | Used on these markers... |
| 13/16"-32 UN | Smart Parts Impulse classic
Smart Parts Ion, Epiphany Smart Parts Shocker SFT, Nerve Smart Parts Shocker Sport vertical feed 2001-2002 ICD Bushmaster Invert/Empire Mini, Mini-GS, Axe, AxePro, Axe 2.0 PMI Piranha Evil Omen Spyder VS1, VS2, VS3, RS, RSX PGI Mayehm AirStar Nova Classic Intimidator |
| M21x0.75mm | WDP Angel LED, LCD, IR3, A1, G7, Arc
AGD ULE / Tac-One Automag AGD X-Mag Deadlywind Dallara, Karta Fastback Autococker AIM Autococker FBM Autococker CCM "old" threads |
| 7/8"-16 UN | Autococker SR bodies |
| 7/8"-20 UN | CCM "new" threads |
| 7/8"-20 UN male | Bob Long Protege |
| 7/8"-27 UN | WarMachine Assault-80 |
| 7/8"-32 UN | Smart Parts Shocker NXT
DLX Luxe Smart Parts Ion XE, EOS Shocktech retro Autococker bodies |
| 29/32"-20 UN | AKALMP Excalibur, Viking
AKALMP Merlin |
| 29/32"-32 UN | FEP Quest |
| 15/16"-20 UN | MacDev Cyborg? |
| 15/16"-32 UN | GenE Matrix, Dye DM3
Dye DM (all models) Proto Matrix PM (all models) |
| 1.063"-20 UN male | STO Autococker |
Unified imperial threads are described using their number of threads-per-inch.
Metric threads are defined by their pitch distance, which is the length of each thread helix lead.
| Mount style: | Used on these markers... |
| Eclipse latch mount - small | Eclipse Ego5, Ego6 |
| Eclipse latch mount | Eclipse Ego 7 and later
Eclipse Etha Eclipse Etek Smart Parts 09 Impulse (close enough) |
| Eclipse latch mount - "low profile" | Eclipse LV1.5
Eclipse Geo Eclipse CS1, CS1.5 |
| Empire latch mount | Empire Sniper, Resurrection
Empire Vanquish Shocker RSX/XLS/CVO (close enough) Nummech marker bodies J4 Torque |
| Bob Long / BLAST / Field One "No-groove" latch mount | BLAST G6R
BLAST Insight NG BLAST MVP BLAST Marq VCOM BALST Onslaught |
| Bob Long / BLAST / Field One "Groove" latch mount | Field One Marq VCOM 2018+
Field One Force |
| HK TREX latch mount | HK TREX VCOM |
Note: Empire feednecks are generally compatible with the Eclipse mount. However, Eclipse feednecks aren't compatible with Empire mounts because of their height.
13/16"-32 UN threaded feedneck:
Solidworks Assembly (.sldasm)
Description: This is an assembly model for the Smart Parts Q-lock feedneck. The ZIP archive contains Solidworks part documents but there is no native geometry inside the files; they're all imported from another CAD program then converted to SLDPRT files. You can move and arrange the files, but not edit them natively.
AutoCAD drawing (.dwg)
Description: 2d feedneck specification drawing. This is used on the B2K4 as well as other ICD markers.
Solidworks library feature (.sldlfp)
Description: Thread spec for the ICD feedneck, female side.
ACIS SAT file (.sat)
Description: This feedneck comes on most Empire Axe classic markers. The model is only for the housing component, no cam lever included. A similar version of this was also used with Invert/Empire Mini classic markers. Note that newer MiniGS and Axe Pro markers used the Empire accessory feedneck boss system.
Eclipse boss-latch feedneck:
ACIS SAT file (.sat)
Description: This model was created using measurements from an Etek3 LT marker body. It should represent the same feedneck boss used by other Eclipse markers using a compatible feedneck.
ACIS SAT file (.sat)
Description: A demo model for the Emek PAL feedneck. Essentially this model represents the outside shape only; the internal measurements are only approximations.
Empire boss-latch feedneck:
PDF file (.pdf)
Description: This is a reverse-engineered print made using measurements from an Empire Sniper.
ACIS SAT file (.sat)
Description: Nummech's boss-latching feedneck using a separate cap ring component.
M21x.75mm threaded feedneck:
Description: Demo model for the female receiving threads on Angel feednecks.
29/32"-20 UN threaded feedneck:
AutoCAD drawing (.dwg)
Description: Official release for the AKALMP feedneck, specifically the male feedneck itself.