TROY .875 GAS BLOCK
$48.60
Troy Gas Block (.875) – Bull Barrel Rifle Kit
Machined from 4140 pre-hardened steel, this gas block is specifically designed for bull barrel rifles with a .875 gas block seat and Armalite 0.308 heavy barrel. Finished with MIL-STD Manganese Phosphate for corrosion resistance.
12 in stock
The TROY Industries .875 gas block is designed for bull barrel rifles with a .875 gas block seat and Armalite 0.308 heavy barrel. Machined from 4140 pre-hardened steel, it has a black MIL-STD manganese phosphate finish for corrosion resistance.
- Manufacturer: TROY Industries
- Gas Block Size: .875
- Color: Black
- Material: 4140 pre-hardened steel
- Finish: MIL-STD manganese phosphate
- Profile: Low profile
- Manufacturer Part Number: TRYSGAS-875-00BT-00
- UPC: 812699014578
| Weight | 0.125 lbs |
|---|---|
| Dimensions | 8.000 × 4.000 × 1.000 in |
| Manufacturer | Troy Industries |
| Finish | MIL-STD Manganese Phosphate |
| Material | 4140 pre-hardened steel |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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