AR-15 Upper/Lower receiver vise block kit

Upper vice block:

• Fits standard mil spec 5.56 upper receivers
• Length: 4.75"
• Net Weight: 14.1 oz.
• Color: Black

Lower vise block:

• Fits into magazine housing from either the top or bottom
• Length: 4.875"
• NetWeight: 4.6 oz.
• Color: Black