Кстати наиболее распространённые резьбы на стволах(не только короткоствола)
M=Metric (for example - M13.5x1 LH means that the numbers are metric instead of standard.)
LH=Left Hand (for example - M13.5x1 LH means the threads are backwards from what you typically expect. This thread pitch would require righty-loosey, lefty-tighty... )
RH=Right Hand (for example - M16x1RH means the threads work how you typically expect (righty-tighty... ). If there is no LH or RH designation - RH is the default.)
Having said all that, here goes:
.22 LR, .22 MAG, .17 HMR
The standard thread for these calibers is 1/2x28.
Many .22LR pistols (Ruger SR, Walther P22, Sig Mosquito, GSG 1911, etc) have barrels that are threaded underneath the slide
These pistols require an adapter that will move the threads in front of the slide and allow you to attach a silencer.
Some CZ rifles use a 1/2x20 thread pitch and require an adapter.
1/2x28 is the most common thread for 9mm weapons - both carbine and pistol.
H&K weapons use the M13.5x1 LH thread pitch
Sig Sauer weapons use the M13.5x1LH thread pitch - with an exception of the P320 variants which run New Hampshire made barrels in 1/2x28
.40 S&W
9/16x24 is the most common thread pitch for .40 cal weapons.
H&K weapons use the M14.5x1 LH thread pitch
.45
.578x28 is the most common thread for .45 cal weapons.
H&K USP Tactical uses the M16x1 LH thread pitch
H&K Mark 23 (Socom) uses the M16x1 RH thread pitch
5.56mm (.223)
AR-15s use the 1/2x28 thread pitch
Steyr Aug uses the M13x1 LH thread pitch
H&K weapons use the M15x1 thread pitch
Ruger Mini uses 9/16x24 thread pitch
7.62mm (.308) - And most ".30 caliber" cartridges
5/8x24 is - by far - the most common threading for 7.62mm/.308 weapons
Sako TRG uses the M18x1 thread pitch
Accuracy International uses the M18x1.5 thread pitch
AK-47s use a number of different thread pitches
M14x1 LH - This is the most common thread pitch for eastern European and most US made AK's
M24x1.5 RH - This thread pitch is most often found on the gas/front sight block of AK-74 rifles
M26x1.5 LH - A somewhat unique pitch that can be found on PAP92 or M85 Yugo builds. Again, these rifles are threaded on the gas/sight block, not the barrel.
.338LM
5/8x24 is the most common thread for .338LM weapons
Sako TRG uses the M18x1 thread pitch
Accuracy International uses the M18x1.5 thread pitch
Desert Tactical Arms uses the 3/4x24 thread pitch
