Guntec USA has been manufacturing AR-15, AR-308 and AR 9mm accessories since 1989. Our goal is to distribute excellent quality, at an economical value.
- T6 Aluminum
- Works With BCG And Charging Handle Installed Or Not Installed
- Lightweight, Extremely Durable
- Tight Fit
- Fits 5.56 And .308 Cal Upper Receivers
- Upper Locks Into Position With Two Pins
- Anodized Finish
- Fits Bench Vises
- Tool Efficiently Helps With Install Of Barrels Or Free Floating Handguards
Milo –
Having recently added the Dual AR 5.56 / .308 Cal Upper Receiver Aluminum Vise Block to my collection, I can honestly say it’s a solid upgrade for any serious builder or maintenance enthusiast. Designed specifically for AR-15, AR-308, and AR 9mm platforms, this vise block offers versatility that’s hard to beat. The craftsmanship is evident right out of the box — the aluminum material has a heavy-duty feel, and the finish is smooth with precisely machined slots that fit snugly into the upper receivers.
One of the standout features is its dual compatibility. Switching between 5.56 and .308 lowers is quick and secure, which really streamlines the build process. The design ensures the upper is held firmly without damaging the finish or bending, even when applying significant torque. I particularly appreciate how lightweight yet sturdy it feels, making it comfortable to use for extended periods without feeling cumbersome.
The design also includes thoughtful details like the included alignment pin, which keeps everything perfectly aligned during install or disassembly. This added precision reduces the frustration often associated with working on firearms and contributed to a smooth, straightforward experience during my last maintenance session. Plus, it’s made right here in the USA, which is always a plus for those supporting domestic manufacturing and quality standards.
Compared to other vise blocks I’ve used, this product stands out in terms of durability and craftsmanship. It feels built to last a lifetime, and I believe it offers excellent value especially considering the quality and the multi-caliber functionality. Whether you’re assembling a new upper from scratch or performing routine cleaning and maintenance, this vise block makes the job cleaner, safer, and more efficient.
Overall, this dual AR 5.56 / .308 Cal Upper Receiver Aluminum Vise Block is a reliable addition to my toolkit. It’s well-made, versatile, and every bit designed with the builder and enthusiast in mind. If accuracy and ease-of-use matter to you, it’s worth considering. Definitely a smart investment for anyone serious about their AR builds and repairs.