Obsidian Arms Upper Receiver Vise Block AR-308 - OA-VBUA-308

Secure your AR-308 build with confidence using the Obsidian Arms Upper Receiver Vise Block, the essential tool for precision gunsmithing. Designed specifically for AR-10 and AR-308 platforms, this vise block ensures your upper receiver stays protected from vise jaws, preventing scratches, dents, or finish damage during intensive tasks like barrel installation, optic mounting, or general maintenance. Crafted for the serious builder who demands reliability without compromise, it’s your go-to solution for stable, hands-free work that elevates every project.

Key Features

• High-Density Polyethylene (HDPE) Construction: Engineered from durable, non-marring HDPE material that withstands high torque while safeguarding your receiver’s anodized surface.
• Universal Fit for AR-308 Uppers: Compatible with all standard AR-10/AR-308 upper receivers, including popular models from leading manufacturers, for seamless integration into your workflow.
• Included Locking Pins: Securely locks into the receiver’s pivot and takedown pin holes, providing a rock-solid hold that distributes pressure evenly to avoid warping or distortion.
• Made in the USA: Precision-machined for quality you can trust, ensuring longevity and performance in your home workshop or professional setup.

Specifications

• Material: High-Density Polyethylene (HDPE)
• Compatibility: AR-10/AR-308 Upper Receivers
• Weight: 16 oz
• Dimensions: Compact design fits standard bench vises
• Inclusions: Locking pins for secure installation

Why Choose the Obsidian Arms Vise Block?

Building or maintaining an AR-308 rifle shouldn’t risk damaging your investment. Traditional vise methods can crush aluminum receivers or mar finishes, leading to costly repairs and frustrating setbacks. This vise block solves those pain points by offering a protective barrier that grips internally via pin holes, allowing you to apply maximum torque for stubborn barrel nuts or handguards without worry. Its lightweight yet tough build reduces fatigue during long sessions, and the non-conductive HDPE prevents static or heat transfer issues. Ideal for hobbyists and pros alike, it streamlines your process, ensuring clean, professional results every time. Whether you’re assembling a custom .308 build or performing routine upkeep, this tool delivers the stability and protection needed to keep your focus on craftsmanship, not caution.

Frequently Asked Questions

1. Will this vise block fit my specific AR-308 upper receiver?
Yes, it’s designed to fit all standard AR-10/AR-308 upper receivers, providing a precise and secure lock-in for most mil-spec patterns.

2. Can I use this block with the bolt carrier group or charging handle installed?
Absolutely, the internal design allows for use with BCG and charging handle in place, making it versatile for various maintenance scenarios without disassembly.

3. Is the HDPE material strong enough for heavy-duty tasks like barrel removal?
Yes, HDPE is engineered for high-impact resistance and torque handling, offering reliable performance comparable to aluminum alternatives while adding superior protection against marring.

Don’t let imprecise tools compromise your AR-308 precision—add the Obsidian Arms Upper Receiver Vise Block to your kit today and experience hassle-free, damage-free gunsmithing that builds confidence in every step.