Griffin Armament Maritime AR-15 Receiver Extension
The Griffin Armament Maritime AR-15 Receiver Extension is a rugged carbine buffer tube built for reliable performance in demanding conditions. Machined from 7075-T6 aluminum to Mil-Spec dimensions, it provides six stock positions while seven integrated ports allow excess gas, water, oil, and debris to escape the operating system. A black Mil-Spec hardcoat anodized finish adds durability and corrosion resistance, making it a strong upgrade for AR-15 builds that need dependable performance and long service life.
Features
- Six-position carbine receiver extension
- Seven vent and drainage ports
- Allows gas, water, oil, and debris to escape the operating system
- Mil-Spec dimensions
- 7075-T6 aluminum construction
- Mil-Spec hardcoat anodized finish
- Designed specifically for AR-15 platforms
- Black finish
- Made in the USA
- Backed by Griffin Armament’s Perpetual Lifetime Warranty
Specifications
- Product Type: Receiver Extension / Buffer Tube
- Platform: AR-15
- Configuration: AR15 MRE – Black
- Length Type: Carbine
- Adjustment Positions: 6
- Drainage / Vent Ports: 7
- Material: 7075-T6 Aluminum
- Dimensions: Mil-Spec
- Finish: Hardcoat Anodized
- Color: Black


