While it may work on other applications the SD-1 is designed for a 16' barrel with a Carbine length gas system. On a 22LR or a 9mm they can be used on any length barrel down to 10'. Example would be a YHM Spectre length rail system. The SD-1 shrouds back over the barrel adding no length to the barrel. Insure that there is enough clearance to fit inside your rail system.
With the SD-1 installed back into your rail system the appearance will be of an SD Suppressed Rifle.
End user installation - does not require special gunsmithing tools.
Installs in 10 minutes
Please Note...
THESE ARE ONLY FOR LOOKS. IT IN NO WAY REDUCES THE SOUND OF THE FIREARM. THIS IS NOT A SILENCER/SOUND SUPPRESSOR... IT IS A BARREL SHROUD.
General rule on threads-
Most Production barrels for 223/5.56 would be 1/2x28, needing Model A-1 Fake Can
Most Production barrels for 9mm (ie. Colt, RRAetc.) would be 1/2x36, needing Model A-2 Fake Can.
There have been a number of other calibers also done in 1/2x36.
This is ONLY a general rule, not a hard and fast rule, we do not guarantee your threads will fall under this rule, it is for guidance only.
