This kit includes the hammer block and roll pin punch
Precision machined double-sided AR-15 armorer block. This block is loaded with features for AR gunsmithing work. An absolutely indispensable piece of gear for any armorer or hobbyist armorer with an AR-15. Virtually indestructible and resistant to all oils and solvents.
Made using solid HDPE. Super tough ultra high molecular weight high density polyethelyne.
Resists all common solvents.
Holds uppers, lowers.
Supports receiver when driving trigger guard pin.
Holds bolt catch compressed when driving pin (when used with hammer block, see pics below).
Hammer block allows realistic tuning of trigger work.
100% USA Made by the dedicated folks at Crosstac.
Clamps into vice while securely holding an upper or turn it over and place it into a lower receiver.
Supports lower receiver "ears" when driving cross pin for trigger guard.
Optional hammer block snaps in to the main block when clamped into a lower receiver. Allows fine tuning of trigger pull without damaging receiver. Eliminates need to catch hammer when testing trigger pull. Also adds support for holding the lower vertically & will hold bolt catch captive to allow driving of retaining pin easily. Crosstac AR-15 Armorer Block Full Kit
WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.