Spike’s Billet Upper Receiver Assembly Block

At Spike’s Tactical, we believe our customers should be able to own the same tools we made for ourselves to use in the armory. All of our tools are high grade and professional quality. Supports upper for cleaning, maintenance, and assembly. You will never need another upper assembly block again.

This black anodized version is a gen. 2 model. We finally made it ambidextrous, you can swap the take down pins to either side with two set screw on the bottom. If you don’t use one of these for swapping parts or full upper builds you need to get one.