USFA Zip Gun No Magazine

ZiPFactory (U.S. Fire Arms Manufacturing Company)


Douglas Donnelly

Production began


Production ended


Weapon type



.22 Long Rifle



Overall length

7.25 inches

Barrel length

5.25 inches


.95 lbs


1.2 inches


3.1 inches

Magazine/Cylinder capacity

Ruger 10/22 magazines

Not to be confused with Zip gun.

The USFA ZiP Gun, officially known as the USFA ZiP .22 Long Rifle, is a .22 LR semi-automatic bullpup pistol. The pistol is made by the U.S. Fire Arms Manufacturing Company under the brand ZiPFactory. It is the only known firearm that has been produced by ZiPFactory.[1][2][3]


The USFA ZiP Gun is largely made out of polymers, with very few metal parts. The weapon is extremely small, reminiscent of a zip gun, or improvised single-shot firearms, where the weapon got its name from. The weapon's extremely small size meant that the bore axis is almost completely aligned with the shooter's hand.

The gun has no grip, and users must use their index and middle finger to grip the trigger and a small loop underneath the trigger, and their palm resting on the back.

The weapon has no slide nor any visible bolt handle. Instead, there are two charging rods, both located directly above the muzzle. The longer rod is called the "ZiP LOAD" rod. Pushing it into the frame and releasing it will move the bolt back and chamber the first round. The shorter rod is called the "ZiP RESTRIKE" rod. Pushing it into the frame will reset the striker but not remove a round from the magazine. The two rods can be switched with each other.[4]

An inspection port on the top of the weapon allows the user to check if the weapon is cocked or not. A set of tools is hidden in the top plate and can be used to disassemble the weapon.[5]

The safety is a small button located near the trigger guard. The magazine release is a small lever located behind the magazine.[6]


The weapon is modular and allows for many customizable components from ZiPFactory to be used. The standard fixed sight top rail can be replaced with ZiPFactory's ZiP Ghost Rail Standard Fixed Sight (glow in the night version of the standard top rail), ZiPPIC Rail (1913 Picatinny rail), ZiPNite Rail (allows Glock-compatible sights to be installed), and ZiPSBR Rail (allows the ZiP Gun to be attached to another gun. Attaching it into a rifle turns the weapon into a Short Barreled Rifle under US law, hence the SBR name).

Other accessories include the BattleZiP Survival SBR Stock (a full rifle stock), a Suppressor Barrel Kit (for a suppressor or other muzzle accessories), an Action Hold Back (a special block that can be used to hold down the "ZiP LOAD" rod to hold the bolt open), a Belt Clip, and a drop-in Upgrade Kit ver. 1.0.1 that fixes a few issues related to sticky mags and sticky rods.

The weapon uses Ruger 10/22 magazines. It works best with BX-1 10-round magazines and has issues with using the BX-25 25-round magazine, which feeds too slowly. ZiPFactory manufactures the ZX-30 Reliability Upgrade upgrade kit that improves the spring inside the BX-25.

The weapon is noted to be very unreliable, and jams extremely frequently.[7][8]



A .22 Magnum single-shot/semi-auto variant (SSE standing for Single Shot Express) made by attaching a drop-in ZiPSSE Module onto the ZiP Gun. Was not made available for sale before the ZiPFactory lost their Federal Firearms License and their domain shut down.[9][10][11]