Double-sided AR-15 armorer block. Clamps into vice while securely holding an upper or turn it over and place it into a lower receiver. Includes hammer block for checking your trigger job. No more catching the hammer with your thumb!  Also includes roll pin driver specially designed for AR assembly work.

Features:

• Precision CNC machined from solid ultra high molecular weight polyethylene
• Virtually indestructible and resistant to all oils and solvents
• 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.
• Roll pin driver CNC machined from solid stainless steel