CMMG Gas Block Assembly Low Profile .625inch ID
$31.88
Upgrade your rifle’s performance with the CMMG Low Profile Gas Block Assembly, featuring a .625-inch inner diameter for optimal gas flow and reliability. This gas block comes complete with installation screws, ensuring a hassle-free setup for your custom builds or replacements. Perfect for enhancing your AR platform’s efficiency and overall shooting experience.
16 in stock
.625? Low profile gas block includes installation screws
| Weight | 0.045 lbs |
|---|---|
| Dimensions | 6.000 × 4.450 × 0.250 in |
| Manufacturer | Cmmg Inc. |
| Finish | Black |
| Material | Steel |
| Dimensions | Low Profile .625 inch ID |
| Compatible With | AR-style rifles |
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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