Site Information

AR-15 Armorer Block, full kit, with hammer block and roll pin punch


Product Description

Working on your AR-15 with it simply laid out on the bench, can truly be a total pain! Our precision machined, double-sided AR-15 armorer block is loaded with features for AR gunsmithing work. Rock steady and ready to make any work you do on your AR more of a breeze. This is an absolute necessary piece of gear for any armorer or hobbyist armorer with an AR-15.  Please note when holding an upper with this product, do not torque barrels past mil-spec 30 ft-lbs or you can damage the firearm.  Use our modular block system for barrels.  This product is perfect for brakes, suppressors, scope mounting, etc.

Check out the video for tips on how to use our kit !

Technical Specs

  • CNC precision-machined from solid HDPE, super tough 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).
  • Hammer block allows realistic tuning of trigger work.
  • 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.
  • Hammer block can be used in conjunction with the main block to stand the lower on its nose, allows you to hold the lower vertically & more easily install bolt catch retaining pin.
  • Hammer block allows fine tuning of trigger pull without damaging receiver from an accidental strike. Eliminates need to catch hammer when testing trigger pull.
  • Stainless steel custom CNC turned roll pin starter included
  • 100% USA Made by the dedicated folks at Crosstac.

Product Reviews

Write Review

Showing reviews 1-8 of 9 | Next

  1. Outstanding Qaulity

    Posted by Fritz on 1st Dec 2017

    Received the armorers block today. Solid set! Tested on the bench vise with a stripped upper and lower; no play at all. Had to do only minimal shaving on the lower part. Be cautious not to shave off too much. Far superior block than the other name brand block that snapped when tightening the muzzle device. Glad I stumbled across Crosstac.

  2. Great Block

    Posted by Unknown on 26th Feb 2017

    This is a great armorers block. This works great for building your lower and maintenance..

  3. Hammer Away

    Posted by Brian on 6th Feb 2017

    This kit is awesome. I have a Geissele adjustable trigger and this kit allows met to tune in my trigger and test it as i go. You can set the armor block in to hold the lower and then i used velcro to hold the hammer block on so i don't have to hold it. Now I can focus on holding the lower in a realistic position and do my adjustments as needed.

  4. Amazing

    Posted by Unknown on 23rd Jun 2016

    Had a little issue in the beginning with shipment but with their awesome customer service they over nighters my order and this is a must have if you're building it makes your build 100% easier proud to have it and my friends already want to borrow it. Thank you Mary!

  5. Good product

    Posted by Tisca on 3rd Mar 2016

    Good product

  6. Prompt shipment and great product

    Posted by Rich on 23rd Jan 2016

    I have not had a chance to use it yet, but it looks good and is exactly what I needed.

  7. Great product for AR build

    Posted by J.D. Ransom on 26th Apr 2015

    This is a must have tool for building an AR. It is sturdy and will ease the building of the AR lower.

  8. Armorer Block Kit Review

    Posted by Unknown on 12th Jan 2015

    This product was very helpful when installing the "bolt catch". It works as described and made the job easier. This is a great tool for an AR build.

Showing reviews 1-8 of 9 | Next

Find Similar Products by Category