SR SERIES INSTRUCTIONS

OPERATOR LEVEL INSTRUCTIONS

Installation Instructions

  1. Make sure rifle is unloaded
  2. Ensure muzzle brake threads and shoulder are clean and free of debris/carbon
  3. Ensure suppressor threads are clean and free of debris/carbon
  4. Place SR Collar in unlocked position, as shown in Fig. 1
    Fig. 1



  5. Holding the fluted section of the suppressor install the suppressor onto the muzzle brake via threaded interface, rotating the suppressor in the clockwise direction until hand tight against shoulder
  6. Rotate the collar towards the Lock region until hand tight, do not over tighten collar. The Lock region is where the set screw is between the two vertical lines on the collar, as shown in Fig. 2. Every suppressor will “lock” at a different point within the Lock region.

    Fig. 2


Removal Instructions

  1. Wait to remove the suppressor until it is cool to the touch
  2. Verify that rifle is unloaded and chamber is clear
  3. Loosen and rotate collar to the Unlocked position, as shown in Fig. 1
  4. Grabbing the fluted portion of the suppressor loosen the suppressor by rotating in the counterclockwise direction until it comes free from the muzzle brake

Operator Maintenance

Muzzle Device

Remove carbon/debris from the exterior surfaces of the muzzle device using the M16 nylon brush and bore tech eliminator
[ Frequency: 500 rounds ]

Suppressor

Remove carbon/debris from the interior threads of the suppressor, as shown in Fig. 3 using the M16 nylon brush and bore tech eliminator
[ Frequency: 500 rounds ]


Fig. 3



If collar becomes difficult rotate or full of debris, return suppressor to armorer.






ARMORER LEVEL INSTRUCTIONS

ASSEMBLY DIAGRAM



DISASSEMBLY

  1. Remove set screw from the slot in the SR collar
  2. Rotate the collar in the “locking” direction; the detent spring will force the dogs into the clearance cuts and the collar can then be removed from the suppressor. Do not remove the wave spring from the wave spring channel.
  3. With the collar removed the locking arm, chastity arm and two coil springs can also be removed. Once removed each part of the assembly can be cleaned if necessary

CLEANING / MAINTENANCE

  1. SR collar, wave spring channel, locking arm and chastity arm can be cleaned with any mild solvents including brake cleaner and acetone. Cleaning of these components is only necessary when debris is present
  2. Suppressor: Fill the internal portion of the suppressor with CLR for 2 hours and then rinse with hot water. Alternatively the entire suppressor can be submerged in CLR; however this will affect the Cerakote finish over time. Remove SR collar, arms and small coil springs from assembly before applying CLR. Leave the wave spring located in the wave spring channel) on the assembly.
    1. Clean suppressor when it weighs one ounce more than original factory weight.
    2. Multiple cleaning cycles may be necessary to remove all carbon deposits on the interior of the suppressor if more than 500 rounds have been fired

ASSEMBLY

  1. Reinstall the locking arm and small coil spring. The pin of the locking arm will span the bottom of the coil spring when properly installed. It is easiest to hold the spring on each arm as shown below.


  2. Reinstall the chastity arm and second small coil spring. The pin of the chastity arm will span the bottom of the coil spring when properly installed. The springs should be orientated to bias/push the arms towards the center of the suppressor. The main part of the body of both arms will be flush against the Suppressor Thread End as shown below:


  3. Orientate the locking and chastity arms, as shown below to allow the collar pins to fall into their respective slots in the collar.


  4. Reinstall the collar by aligning the dogs; it will only go on in one orientation. Push the collar against the detent spring and rotate the collar clockwise such that the set screw can be reinstalled in the exterior slot of the collar.
  5. Place a dab of blue Loctite on the set screw and install until tight

APPLYING GREASE (OPTIONAL)

  1. Anti-seize may be applied to the threaded portion of the suppressor but is not necessary
  2. Anti-seize may be applied to the threaded portion of the suppressor but is not necessary
  3. Apply Permatex Ceramic Extreme Brake Lubricant (purple) to the areas indicated in the image below: