Remington 476 Powder Actuated Hammer Fastener + Shots
Product Description:

• Powder actuated fastening hammer designed for the do-it-yourselfer
• The strike of a hammer will actuate and fire a pin into concrete, steel or masonry
• Ideal for mounting framing lumber, electrical junction boxes, conduit clips, & more
• Uses .22 caliber low velocity power loads to fasten up to 2-1/2″ power fasteners

These are brand new but came packed to usin Bulk boxes of 12, there is no instructions packed with these.
Please note the Remington 476 model doesn’t have a firing “pin”, it has a smooth plate that connects with the shots and is not missing a pin.If you are having difficulty using the fastener ensure the spring is fully depressed and strike the tool with significant force.