Operation and Maintenance Manual
THE TEN COMMANDMENTS OF FIREARM SAFETY
1. Always keep the muzzle pointed in a safe direction.
2. Firearms should be unloaded when not actually in use.
3. Do not rely on your firearm's safety.
4. Be sure of your target and what is beyond it.
5. Only use ammunition that exactly matches the markings on your
firearm.
6. If your firearm fails to fire when the trigger is pulled, handle with
care.
7. Always wear eye and hearing protection when shooting.
8. Be sure the barrel is clear of obstructions before shooting.
9. Do not alter or modify your firearm and have it serviced regularly.
10. Learn the mechanics and handling characteristics of your firearm.
Read your firearm's instruction manual.
WARNING! Failure to follow the instructions and recommendations
set forth in this manual can create a potentially dangerous situation
for the user and surrounding personnel, and possibly leading to prop-
erty damage, personal injury and/or death.
WARNING! Never install or remove a silencer onto or from a host
firearm that you have not verified to be completely unloaded and ren-
dered safe. Installing or removing a silencer onto or from a loaded
firearm may lead to property damage, personal injury and/or death.
WARNING! Always wear eye protection when discharging a firearm
equipped with a silencer. Discharging a firearm without wearing eye
protection may lead to property damage, personal injury and/or
death.
WARNING! The HALCYON is designed for use on modern pistols and
long guns in serviceable condition. It is the user's responsibility to
insure the intended host firearm is in serviceable condition. Using a
HALCYON on firearms that are not in serviceable condition can lead
to property damage, personal injury and/or death.
WARNING! The barrel threads must be properly machined to allow
proper attachment of a HALCYON silencer. The use of an improperly
threaded barrel with a silencer may lead to property damage, per-
sonal injury and/or death. Barrel threading guides are available on
the AAC website at www.advanced-armament.com. For further clari-
fication on muzzle threads, contact ADVANCED ARMAMENT CORP.
at 770-925-9988.
WARNING! The bore through your HALCYON silencer must align con-
centrically with the bore of the barrel to which it is mounted. A mis-
match of the silencer and barrel bore may lead to property damage,
personal injury and/or death.
WARNING! Discharging silenced firearms can make airborne and/or
deposit lead and other substances around, on and in the silencer.
Using, handling and/or cleaning a silencer may result in exposure to
lead and other substances known to cause birth defects, reproductive
harm, cancer and other serious physical injury. Have adequate ven-
tilation at all times and wash hands thoroughly after exposure.
CAUTION! Silencers can become extremely hot while the host firearm
is being discharged. After shooting, allow the silencer to reach ambi-
ent temperature before attempting to remove the silencer from the
firearm. If removal is necessary prior to the silencer cooling to ambi-
ent and/or the tightness of the silencer on the host firearm barrel
must be verified, the use of heat-resistant gloves is mandatory. Han-
dling a hot silencer without heat-resistant gloves may lead to skin
burns and/or personal injury.
GENERAL DESCRIPTION
Congratulations! You are now the proud owner of the only high-perfor-
mance 22 WMR/5.7 x 28 rated silencer available in the marketplace today
that enables users to quickly, easily, and without tools, configure the length
of the silencer to suit your requirements. In seconds, you can configure the
HALCYON as a full-size, 5.28” silencer for the utmost in sound reduction,
or as a compact 3.46” model when overall system size is a consideration.
Please take a few minutes to read through this technical manual and fa-
miliarize yourself with the details on the proper use and maintenance of
your HALCYON silencer. In addition to modularity and multi-caliber com-
patibility, the HALCYON also enables users to quickly and without tools,
change the host firearm interface thread to accommodate most of today’s
popular host firearms. Although the HALCYON was designed for use with
high-pressure 22 WMR/5.7 x 28 ammunition, it can also be used with other
ammunition calibers. The chart on the following page lists appropriated cal-
ibers, action types, and minimum barrel lengths approved for use with the
HALCYON silencer.
SILENCER MODEL HALCYON P.1 SILENCER MODEL HALCYON P.2