Velocity Adjustment
Velocity adjustment is done by adjusting the rear Velocity Screw (25). See page 10 for more
information. Extreme velocity adjustment can be made by replacing the Hammer Spring (15). See
page 11 for more information. Always use a chronograph to make sure your marker is shooting
under the legal field limit after each velocity change.
The Cup Seal (7) can be accessed by removing the Puncture Assembly Set Screw (27) and sliding the
Puncture Assembly out the front of the marker. Oil the Puncture Assembly with 100% synthetic oil
before re-installing.
The Orange Thread Guard (71850) on the front of the marker is replaceable with the black one
included in the package.
Maintenance
Always clean all the paintball residue out of the barrel and off the bolt/block/hammer assembly after
each use. Oil the Blue Hammer O-ring (35) with two drops of 100% synthetic paintball marker oil
after each case of paint through the marker or anytime the hammer is cleaned. Place four drops
of oil into the front of the Puncture Assembly (18) and immediately air it up and dry fire a complete
12 gram through the marker after every other case of paint or anytime it has sat idle for over
six months.
THIS PAINTBALL MARKER RESEMBLES A REAL GUN FROM A DISTANCE.
WHEN IN PUBLIC ALWAYS CARRY MARKER IN A BAG AND ALWAYS
PLAY PAINTBALL AT INSURED FIELDS.
W
WA
AR
RN
NIIN
NG
G
!
An optional holster is available from your local paintball store or online dealer.
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PMI Piranha: USP
Loading paintballs
The USP has been designed to hold 10 rounds of paint in the clip. Slide the Sight Screw (31) back
and lock it in the rear position to load paint. Rotate the Clip Lock (4) and load paint. Rotate the
Clip Lock back to cover the paint and unlock the Sight Screw before firing so the Clip Spring (8)
can push paint into the chamber.
USP Specifications
The USP is designed for optimal performance at approximately 250 fps. The velocity will naturally drop
as the 12 gram cartridge empties. Always use a chronograph to make sure your marker is shooting
under the legal field limit. Always follow the Basic Safety Rules found on page 4 and 5 of this manual.
INSTRUCTIONS FOR USING YOUR USP
Important Safety Information
The USP utilizes a slide safety. See page 7 for complete instructions. Always engage the safety before
replacing the CO2 cartridge.
12 Gram Cartridges
This USP marker is designed for use only with 12 gram CO2 cartridges (not included). Always cock
marker by pulling back the Bolt Grip Slide (13) before airing up. If 12 gram leaks upon installation,
continue to tighten the Puncture Knob (3) until the leak stops. Always shoot the 12 gram empty
before loosening the Puncture Knob.
13
PMI Piranha: USP
Never point a paintball marker at yourself!
