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Comstock Armory Knurled Plan-B Thread Protector, 0.900-24, Black Nitride Steel
The Comstock Armory KTP is a knurled thread protector for the external 0.900-24 mounting threads on compatible Plan-B muzzle devices. It covers that interface when a suppressor is removed, helping protect an exposed part of the mounting system during handling and storage.
A 17-4 PH stainless-steel body, black nitride finish and 0.4-ounce weight make this a compact accessory with a specific fit requirement. The thread protector belongs on a compatible muzzle device; its 0.900-24 interface is different from the barrel threads used to attach that device to a firearm.
Shop the Comstock Armory KTP thread protector at BattleHawk Armory.
Knurled Surface for Handling
The exterior knurling provides texture around the body, making the small protector easier to grip. This is useful for an accessory that may be handled separately whenever a compatible suppressor is removed from the muzzle device. Its function is thread protection, and it does not replace a suppressor adapter.
Steel Construction with a Black Nitride Finish
Comstock uses 17-4 PH stainless steel for the body and a black nitride treatment for the exterior finish. The dark appearance coordinates with black nitride muzzle devices, while the 0.4-ounce weight adds little mass to the front of the firearm.
Match the Muzzle-Device Interface
Confirm that the existing Plan-B-pattern muzzle device has the matching 0.900-24 external threads. A matching brand name alone does not establish fit. Barrel thread sizes such as 1/2x28 and 5/8x24 identify a different connection and should not be used to select this protector.
Product Specifications
- Manufacturer: Comstock Armory
- Model / Manufacturer SKU: KTP
- UPC: 850069580025
- Product type: Knurled Thread Protector
- Material: 17-4 PH stainless steel
- Finish: Black nitride
- Weight: 0.4 oz
- Thread interface: 0.900-24 on compatible Plan-B muzzle devices
Frequently Asked Questions
Does the protector thread directly onto a bare barrel?
It is designed for the 0.900-24 threads on a compatible Plan-B muzzle device. It is not a generic barrel-thread protector.
Is a muzzle device included?
No. This item is the KTP thread protector for an existing compatible muzzle device.
Complete your compatible Plan-B muzzle device with the Comstock Armory knurled thread protector from BattleHawk Armory.
| Manufacturer | Comstock Armory |
| UPC | 850069580025 |
| Width | 2.1500 |
| Length | 3.7500 |
| Height | 0.7500 |
| Weight | 0.0200 |



FFL Required