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Key Features

 

  • CNC precision-machined.
  • 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.

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AR-15 Armorer Block Kit

$54.99

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.

Notes

Virtually indestructible and resistant to all oils and solvents.

Why It's Smarter

 

Precision machining!  What's that?  Take a look...   

 

 

Precision machining equals tighter tolerances and a more solid block.  Most other blocks are injection molded which can give you tight tolerances, but not necessarily a solid block and you'll probably get some "X" walls.  Precision machining allows us to cut straight angles that would stick the part in a standard injection mold.