A jam door, also known as an access door, is a standard feature of clip system or electronic blasters. The jam door is a piece that slides back, allowing slight access to the internals in case of a jam. If a dart is jammed in the chamber, the user may remove it from there.
The jam door is usually orange (in some blasters black, or in the Hail-Fire's case, clear) with holes scattered around it. Flip-open doors are made up of one piece held in by a metal bar, and can flip up/slide open to allow access to the chamber. Slide-open doors usually use a friction ridge to stay closed, but sometimes rely on the blaster's priming system. In slide-open blasters, if the door is left open while the blaster is being primed, it will close automatically as the bolt is moved forward. Some blasters may have more than one jam door, such as the CrossBolt. Normally, a blaster cannot fire without completely closing the jam door, however, some blasters such as the Revonix360, CrossBolt and SlingFire can function with the jam door open.
Modders sometimes choose to remove the jam door for even easier access to the chamber, other times, the jam door is not only removed, but is cut out in a way that will allow for darts to be loaded into the cut-out section.
Mechanical locks associated with the jam door (such as a lock that prevents the opening of one if the bolt is not in the rear) are often removed to allow the jam door to be opened at any time. Electronic locks that are linked to the jam door that prevent flywheel blasters from firing are usually also removed.
- Users of the Vortex blasters generally experience less jams than the typical N-Strike blasters. N-Strike Elite blasters also generally jam less than its predecessor line due to improved internals.
- Instead of using jam doors, Vortex blasters and RIVAL blasters often use a jam release switch on the side of the blaster (except for the Proton's and Kronos XVIII-500's, which is on the back). It is actually a plastic lever which unjams an XLR Disc or High-Impact Round. In extremely rare cases, the user may have to open up the blaster to pick out the jammed disc. Some blasters features both a jam release switch and a jam door, such as the Revonix360.
- Depending on the shape of the jam door and bolt sled, with enough skill, a user could theoretically load a dart into the chamber through the door's opening, without removing the blasters' clip. However, this is very difficult to do and not very practical; a more plausible use would be to load darts into a blaster's clip mid-battle through the jam door, easily doable on some flywheel blasters.
|External features||Barrel • Cylinder • Jam door • Muzzle • Priming mechanism • Tactical rail (RIVAL • Buzz Bee • BOOMco. • X-Shot) • Trigger (Acceleration trigger • Firing trigger) • Turret|
|Firing mechanisms||Air bladder • Air tank • Flywheel • Plunger (Direct • HAMP • Motorized direct • Reverse) • Popper • String|
|Dart delivery||Breech • Conveyor system • Dart tooth • Pusher mechanism • Rotation mechanism|
|Plunger parts||Catch • O-ring • Plunger head • Plunger tube • Plunger rod • Spring (Torsion)|
|Other internals||Air restrictor (Intelligent) • Dart post • Flywheel cage • Lock|