Obsidian Arms Upper Receiver Vise Block AR-308
Secure your upper without a scratch—optimized for large-frame ARs.
The Obsidian Arms AR-10/AR-308 Upper Receiver Vise Block is a must-have tool for anyone working on large-frame AR builds. Precision-machined from high-density polyethylene (HDPE), this block provides a secure, non-marring hold on your upper receiver when clamped in a bench vise—preventing damage during barrel installations, maintenance, or optic mounting.
Designed to fit all standard AR-10/AR-308 upper receivers, this vise block includes locking pins for a tight, secure fit during high-torque applications. Lightweight, durable, and easy to use, it’s an essential tool for builders, armorers, or anyone maintaining their .308 platform.
Features
- Fits all standard AR-10/AR-308 upper receivers
- HDPE construction prevents scratching, marking, or crushing
- Locking pins included for secure hold during heavy torque use
- Lightweight and durable—ideal for professional or DIY builders
- Made in the USA
Specifications
- Material: High-Density Polyethylene (HDPE)
- Compatibility: Standard AR-10 / AR-308 Upper Receivers
- Includes: Vise Block and Locking Pins
- Weight: Approx. 16 oz
- Use: Bench vise tool for upper receiver maintenance and builds
| Weight | 16 oz |
|---|---|
| Dimensions | 8.5 × 3 × 16 in |
| MPN | OA-VBUA-308 |
| UPC | 850011609590 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.