Editing ATCI (section)

== Paintball markers ==

VintageRex records two ATCI models.[1]

{| class="wikitable"
! Marker
! Action
! Calibre
! Valve system
! Gas source
|-
| [[ATCI TM-11A|TM-11A]]
| Pump-action
| .68
| Nelson
| Constant air
|-
| [[ATCI TM-12|TM-12]]
| Pump-action
| .68
| Nelson
| Constant air
|}

Both models are catalogued as having direct-feed systems and fixed barrels. Their precise production dates are not established in the VintageRex database.[1]

=== TM-11A ===

The '''TM-11A''' was a .68-calibre pump-action marker using a Nelson-style valve system.

The marker featured an external appearance inspired by military rifles, including an adjustable shoulder stock, integrated carrying handle and barrel-mounted pump grip.

An original ATCI advertisement documents the following equipment and features:[2]

* 11-inch black-anodised aluminium barrel.
* Fibre-reinforced nylon pump handle and grip.
* Adjustable rear sight integrated into the carrying handle.
* Stainless-steel receiver.
* Direct-feed tube angled at 45 degrees.
* Rear-mounted CO₂ tank adaptor.
* Stainless-steel internal components.
* Delrin bolt with a stainless-steel anti-kink tube.
* Adjustable velocity system.
* Automatic trigger mechanism.
* Removable shoulder stock.

The marker was advertised in two configurations:

* '''US$149.95''': Supplied with a constant-air adaptor or quick-change system.
* '''US$189.95''': Supplied with a CO₂ tank.

The manufacturer also advertised optional barrels, sight mounts and carrying equipment.[2]

=== TM-12 ===

The '''TM-12''' was another .68-calibre pump-action marker produced under the ATCI name.

VintageRex records a Nelson-style valve system, direct feed, fixed barrel and constant-air operation.[5]

The precise differences between the TM-11A and TM-12 have not been established from the available manufacturer documentation.