XS Sight Systems Armorers Block Aluminum

Armorers Block Features This armorer s block will allow the gunsmith or enthusiast to assemble modify or maintain almost every AR pattern modern sporting rifle. While most blocks will only fit one specific style the XS block provides the versatility needed to work on any AR pattern upper and lower receiver: AR-15 AR-10 SR25 or DMPS GII. Includes pins to lock in the receiver. Armorers Block Specifications 6061-T6 Aluminum Construction Made in the U.S.A Includes pins to lock in the re