Thread Pitch Guide
This guide is designed to quickly reference what thread pitches your firearms have. If you need more clarification on what attachments you need for that firearm, check out our Pistol Suppressor Attachments Guide.
Click on of the links below to jump to that specific firearm type:
Handgun Thread Pitches
Pistol Caliber Carbine / Subgun Thread Pitches
Rifle Thread Pitches
We recommend double checking your thread pitch with the original manufacturer of your barrel/firearm before making any purchases.
Handguns
After Market Barrels (most common)
.22 – 1/2×28
9mm – 1/2×28
.40 S&W – 9/16×24
45 ACP – .578×28
Beretta
9mm – 1/2×28
B&T
9mm – 13.5×1 LHM
CZ
9mm – 1/2×28
FNH
9mm – 1/2×28
45 ACP – .578×28
Glock
9mm – 13.5×1 LHM
.40 S&W – 14.5×1 LHM
45 ACP – 16×1 LHM
H&K
9mm – 13.5×1 LHM
.40 S&W – 14.5×1 LHM
45 ACP – 16×1 LHM (HK23 – 16×1 RHM)
Ruger
.22 – 1/2×28
Smith & Wesson
.22 – 1/2×28
9mm – 1/2×28
45 ACP – .578×28
Sig Sauer
9mm – 13.5×1 LHM
45 ACP – .578×28
Sphinx
9mm – 13.5×1 LHM
Styer Arms
9mm – 1/2×28 or 13.5xl LHM
Pistol Caliber Carbines / Sub Guns
Angstadt Arms
9mm – 1/2×36
.40 S&W – 5/8×24
45 ACP – .578×28
CMMG
5.7×28 – 1/2×28
9mm – 1/2×36 or 1/28×28
.40 S&W – .578×28
45 ACP – .578×28
Colt
9mm – 1/2×36
CZ
9mm – 18×1 (pre 2016)
9mm – 1/2×28
IWI
9mm – 1/2×36
Kel Tec
9mm – 1/2×28
.40 S&W – 9/16×24
LWRC
45 ACP – .578×28
MP5 Variants
9mm – 1/2×28 or 3 Lug
Ruger
9mm – 1/2×28
Sig Sauer
9mm – 13.5×1 LHM
Quarter Circle 10
9mm – 1/2×28
.40 S&W – 5/8×24 or .578×28
10mm – .578×28
45 ACP – .578×28
Rifles
Common thread pitches per caliber
5.56 – 1/2×28
.30 cal – 5/8×24
Common thread pitches for AR variants
5.56 – 1/2×28
300BLK – 5/8×24
.30 cal – 5/8×24
Accuracy International
.30 – 18×1.5M or 5/8×24
CMMG
350 Legend – 1/2×28
CZ
557 UCS – 5/8×24
750 Sniper – 18×1
Bren S1 – 1/2×28
Desert Tech
.30 cal – 3/4×24 or 5/8×24
FNH
FN 15 – 1/2×28
SCAR 16 – 1/2×28
SCAR 17 – 5/8×24* SCAR17 R3 Flash Hider
SCAR 20S – 5/8×24* SCAR17 R3 Flash Hider
H&K
MR556A1 – 1/2×28
MR762A1 – 15×1
HK91 – 15×1
IWI
5.56 – 1/2×28
300BLK – 5/8×24* SCAR17 R3 Flash Hider
Knight Armament Company
SR25 – 3/4×24
Rock River Arms
350 Legend – 1/2×36
Ruger
Mini 14 – 9/16×24 (pre 2009)
350 Legend – 1/2×28
450 Bushmaster – 11/16×24 (Fixed Mount for the Obsidian45)
Sako
.30 cal – 18×1
Tikka
T3x – 5/8×24
T3 Compact Tac – 5/8×24
T3 TAC – 18×1
Winchester
350 Legend – 11/16×24
* The SCAR17 R3 Flash Hider is designed to seat on the muzzle of the barrel as opposed to the barrel’s shoulder.
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