Author Topic: Muzzle Thread Pitch  (Read 243 times)

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Offline Garand1957

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Muzzle Thread Pitch
« on: August 08, 2017, 03:23:50 PM »
How do I know if I have 12x28 or 18x1 ?
Also whats a good comp to put on my carbine ?

Offline SouthernScorp

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Re: Muzzle Thread Pitch
« Reply #1 on: August 08, 2017, 06:26:18 PM »
18×1 is what the factory barrel nut and birdcage flash hider threads ont. If you have a smaller diameter threaded  section ahead of those threads than you have 1/2×28. I'd give you a picture but i currently have a comp redloctited on



As for comp suggestions the SLR synergy minicomp I'm running is pretty nice. Also have fortis and nerd making higher end comps aswell. Most other stuff around is just 5.56 designs drilled out to pass 9mm projectiles.
« Last Edit: August 08, 2017, 06:37:01 PM by SouthernScorp »
CZ Scorpion Evo S1 Pistol:

SLR Synergy Mini comp
SBT-EVO Brace
PMM Safety Levers
Dual HBI Prostock Charging Handles
Gearhead Mag Release
HBI Trigger Spring
HBI Delta Trigger
PMM QD Front & Rear
Magpul MS1 + QDs
Holosun HS515cu on ADM low mount
Vendetta VP-17-A AFG

Offline SouthernScorp

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Re: Muzzle Thread Pitch
« Reply #2 on: August 08, 2017, 06:34:08 PM »
Random google swiped image


CZ Scorpion Evo S1 Pistol:

SLR Synergy Mini comp
SBT-EVO Brace
PMM Safety Levers
Dual HBI Prostock Charging Handles
Gearhead Mag Release
HBI Trigger Spring
HBI Delta Trigger
PMM QD Front & Rear
Magpul MS1 + QDs
Holosun HS515cu on ADM low mount
Vendetta VP-17-A AFG

Offline SouthernScorp

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Re: Muzzle Thread Pitch
« Reply #3 on: August 08, 2017, 06:38:55 PM »
Totally missed you were asking about  a carbine......... carbines should all be 1/2×28
CZ Scorpion Evo S1 Pistol:

SLR Synergy Mini comp
SBT-EVO Brace
PMM Safety Levers
Dual HBI Prostock Charging Handles
Gearhead Mag Release
HBI Trigger Spring
HBI Delta Trigger
PMM QD Front & Rear
Magpul MS1 + QDs
Holosun HS515cu on ADM low mount
Vendetta VP-17-A AFG

Offline OpusXJ

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Re: Muzzle Thread Pitch
« Reply #4 on: August 08, 2017, 08:14:16 PM »
Yep... all carbines are 1/2-28.

Offline Garand1957

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Re: Muzzle Thread Pitch
« Reply #5 on: August 11, 2017, 12:49:55 PM »
OK got the faux suppressor off my carbine and noticed a small silver washer where you expect to see a "crush" washer.
Is it a crush washer of some sort ?
Do I just tap it off with a rubber hammer (seems to be on pretty tight) or leave it there when I put the new muzzle device on ?