User's Manual Part 2

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LPR ASSEMBLY, CLEANING, TESTING AND CHANGING SEALS

The Low-Pressure Regulator (LPR) is located at the front of the M2 under the barrel. The function

of the LPR is to lower the air pressure supplied to the marker by the Hyper5™ before it reaches the

solenoid. This air pressure is used to cycle the bolt forward and back.

LPR ADJUSTMENT

The LPR is pre-set at approximately 65 PSI. Generally there is no reason to adjust the Factory LPR setting.

Too low of pressure will cause the bolt to not fully cycle, move sluggishly, or not at all. If you experience

dramatic velocity increase during rapid fire, the LPR may be adjusted too low.

Too high of pressure will cause excess kick, potentially increase ball breakage, and cause fatigue on the

bolt components.

You can fine-tune your M2 to its minimum cycle pressure. This will reduce the amount of force of the bolt

hitting the ball (reducing ball breaks) and help with efficiency.

To adjust the LPR pressure, insert a 3/16” Allen wrench into to LPR Access hole below the barrel. Turn the

wrench clockwise (inward) to lower the Pressure, and Counterclockwise (outward) to raise the pressure.

Each 1/2 turn will change the LPR’s output Pressure by approximately 10 psi.

NOTE: APPLYING EXCESSIVE TORQUE TO THE SEAT RETAINER

WILL DAMAGE THE LPR SEAT.

WHEN SERVICING YOUR MARKER:

• MAKE SURE YOUR HOPPER IS REMOVED FROM THE M2.

• MAKE SURE THERE ARE NO PAINTBALLS IN THE BREACH OF THE M2.

• ALWAYS REMOVE THE AIR SUPPLY AND RELIEVE ALL GAS PRESSURE IN THE

M2 BEFORE DISASSEMBLY.

LPR (LOW PRESSURE REGULATOR) ADJUSTMENTS AND MAINTENANCE

The LPR has six components and seven seals

1 Piston O-ring (012 BN70)

2 Piston

3 Shim stack (2 Lg, 9 sm)

4 LPR Cartridge

5 Body O-rings (3 pcs, 013 BN70)

6 Body internal O-ring (007 UR90)

7 Seat (mounted in the seat retainer)

8 Seat retainer O-ring (010 BN70)

9 Seat retainer

(functions as an adjustment screw also)

10 Service nut

11 4-40x1/8” Retaining screw (3 pcs)