Real Avid Smart-Fit AR-15 Lower Receiver Vise Block

The Real Avid Smart-Fit AR-15 Lower Receiver Vise Block is a gunsmith tool for holding an AR-15 lower receiver steady in a bench vise while you work on it. It inserts into the magazine well and uses an adjustable fit to accommodate differences in magwell tolerances between AR-15 manufacturers, reducing the shifting and looseness common with one-size-fits-all blocks.

The block is made of polymer and has a Pivot Lock finish. An adjustment handle on the bottom tightens the fit inside the magwell, and the knurled base clamps into a standard bench vise. Its gray and red coloring is listed as part of the product's specifications.

The block is listed for AR-15 platform receivers and is rated for 5.56x45mm NATO and .223 Remington calibers.

• Brand: Real Avid
• Model: Smart-Fit
• Type: Gunsmith Tool
• Platform: AR-15
• Fits: AR-15 magwell (adjustable fit)
• Material: Polymer
• Finish: Pivot Lock
• Calibers: 5.56x45mm NATO, 223 Remington