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Anyone who has wrestled an AR-10 upper into a bench vise knows the problem with old-school clamp blocks. Squeeze too hard on the receiver and you risk marring or bending parts that were never meant to take that kind of side load. The Real Avid Lug-Lok Upper Vise Block skips that headache entirely by slipping through the upper and seating against the barrel lugs inside the star chamber, which happens to be the strongest structural point on the rifle. All your torque goes into steel that can handle it, not aluminum that can't.
The rod indexes directly to the barrel extension lugs and stays put thanks to a lock knob that keeps everything seated. Two vise pins let you set the upper at multiple working angles and stop it from spinning when you're leaning into a stubborn barrel nut or muzzle device. When you need to reach the other side, back off and rotate the upper without pulling the whole setup apart. It's a clean, repeatable way to lock down a large-frame upper that just makes the job go faster.
This one is precision-machined from 7075-T6 aircraft-grade aluminum with stainless steel pins. The aluminum is intentionally softer than the steel barrel extension it contacts, so it grips hard without chewing up your parts. Fit and finish are dialed in right out of the box, and it drops into any MIL-SPEC AR-10 upper without fuss.
If you build, service, or upgrade AR-10 platforms, the Lug-Lok pairs especially well with a Real Avid vise and turns barrel work into a much less nerve-wracking task. It's the kind of tool you buy once and reach for every time an upper hits the bench.
Clamp-style blocks squeeze the outside of the receiver, which can put damaging inward pressure on the aluminum during high-torque work. The Lug-Lok instead slides into the star chamber and engages the barrel lugs, the strongest part of the rifle. That means all your torque loads into steel rather than pinching the receiver.
It's precision-machined to fit MIL-SPEC AR-10 style uppers. Since large-frame builds vary more than AR-15s, it's worth confirming your upper follows MIL-SPEC barrel extension dimensions. For standard MIL-SPEC uppers, it seats cleanly right out of the box.
Yes. The design lets you rotate the upper to reach different sides while it stays indexed to the barrel lugs. Two vise pins hold it at multiple working angles and keep it from spinning when you apply serious torque, and the lock knob keeps everything seated.
No. The block is machined from 7075-T6 aluminum, which is softer than the steel barrel extension it contacts, so it grips firmly without marring your parts. It's a non-marring design built specifically to protect the components you're working on.
| UPC | 813119013218 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AVAR10LLVB |
| Color | LUG-LOK UPPER VISE BLOCK |
| Length | 16.6000 |
| Model | |
| Model Fit | 7075-T6 Aluminum with Stainless Steel Pins |
| Shipping Weight | 1.72 |
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