Technical Manual

INSTALLATION OF AAC MUZZLE BRAKE
The TiTAN-QD™ silencer couples to a proprietary muzzle brake that
attaches to the existing threads on the muzzle of the host weapon.
The following are instructions for installation of the AAC muzzle brake.
The AAC muzzle brake attaches to the existing muzzle threads of
the host rearm. To maximize recoil reduction and minimize the
disturbance of sand, dirt, and vegetation when ring prone without
the silencer installed, the ports of the muzzle brake must be oriented
at 9 and 3 o-clock. The ideal method of achieving this orientation is
to have a depot level armorer machine a stainless steel washer of
the proper thickness that allows the muzzle brake to thread on at the
recommended torque so that the ports align at 9 and 3 o-clock. The
following instructions will enable armorers in the eld to achieve this
orientation using the provided shim set.
1. Parts Required:
(1) AAC Muzzle Brake - AAC SUPPLIED
(1) Open end wrench (Varies)
(1) Wrench, Torque (NSN: 5120-00-640-6364)
(1) Adapter for Torque Wrench
(1) Protective Vice Jaws (For host weapon receiver)
(1) Solvent (Acetone, Lacquer or Paint Thinner)
(1) ROCKSETT® sealant - AAC SUPPLIED
(1) Seven Piece Shim Kit - AAC SUPPLIED
2. Remove the factory muzzle brake from the host rie following
the procedure set forth in the host rie operators manual.
3. Clean shoulder of barrel and exposed barrel threads thoroughly
with solvent. Rust, grease, oil, and other contaminates MUST
be removed.
4. Thoroughly de-grease and dry the threads on the inside the AAC
muzzle brake.
5. Thread the AAC muzzle brake onto the barrel threads of the rie
with 20 to 30 ft-lbs of torque. If the muzzle brake is not aligned
so that the ports in the muzzle brake are aligned at 9 and 3
o-clock, install a shim or combination of shims that will allow
the muzzle brake to thread onto the barrel in this orientation at
the specied torque.
6. When the optimum combination of shims has been installed on
the barrel of the host rie and the muzzle brake has been test
t to the threads, remove the muzzle brake and once again de-
grease the threads on the barrel and the mating threads inside
the muzzle brake.
7. Install the shim or shims with the thinnest shim placed on the
barrel rst.
8. Apply and distribute one or two drops of ROCKSETT® to the
muzzle threads of the weapon and the threads inside the muzzle
brake.
9. Screw the AAC muzzle brake onto the muzzle threads and up
against the washer or shim stack.
10. Set the torque wrench for a value between 20 and 30 ft-lbs.
Position the torque wrench and 3/4” adapter as far to the rear of
the wrench ats as possible and torque the AAC muzzle brake
onto the host weapon barrel.
11. Wipe off any excess ROCKSETT® sealant. Allow sealant to cure
overnight for best results.
MOUNTING THE SILENCER
1. Set the host weapon on “SAFE”. Remove the magazine, open the
bolt, and verify the chamber is empty.
2. Inspect the threads on the exterior of the AAC muzzle brake and
interior of the TiTAN-QD™ silencer to ensure they are free from
damage and/or obstructions.
3. With the muzzle pointed away from you, slide the silencer over
the AAC muzzle brake until the external threads on the muzzle
brake engage the internal threads of the silencer. Rotate the
silencer hand-tight Counter-Clockwise 1.5-2 turns, until
the 45° shoulder behind the muzzle brake threads engages a
mating 45° surface within the silencer and will no longer turn
(See Figure 1). Teeth on the ratchet latch will engage mating
teeth on the AAC muzzle brake and prevent the silencer from
inadvertently unscrewing during use.
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FIGURE 1