Plan B Thread Protector
Thread and taper protector for any Plan B compatible muzzle device. Keeps the .900–24 threads and 25° taper covered when the suppressor is not attached. Stainless steel, QPQ nitride.
Part no. PB-TP-1258
Plan B system: what goes with this part.
The Thread Protector covers the .900–24 threads and 25° taper of any Plan B compatible muzzle device while the suppressor is off. It fits every device below.
- Optional accessories and replacement hardware
- Flash Comp 1/2–28 — barrel-side half for 1/2–28 barrels; no timing required.
- Flash Comp 5/8–24 — barrel-side half for 5/8–24 barrels; no timing required.
- Brake Comp 1/2–28 — barrel-side half for 1/2–28 barrels when recoil reduction is the priority.
- Brake Comp 5/8–24 — barrel-side half for 5/8–24 barrels when recoil reduction is the priority.
- HUB Mount Adapter — the suppressor-side half of the Plan B system; 1.375–24 HUB thread.
Plan B thread & taper protector. Keep the threads and taper on any Plan B compatible muzzle device protected when the suppressor is not attached.
Muzzle device shown in photos for reference only — not included.
Verify every interface before you buy. Thread pitch, muzzle-device geometry, suppressor bore and mount depth all have to agree. "HUB compatible" is not blanket approval — confirm the exact suppressor model against its manufacturer's current drawings. Installed, fired or modified products cannot be returned.
| Thread pitch | .900–24 O.D. |
|---|---|
| Taper | 25° Plan B taper |
| Overall length | .600 in. |
| Weight | .4 oz. |
| Surface hardness | 68 RC |
| Material | Domestic stainless steel |
| Finish | QPQ nitride |
| Origin | Made in America |
| Compatibility | Plan B mounting system |