Wheeler Delta Series AR-15 Reciever Lapping Tool - Reviews
Wheeler Delta Series AR-15 Reciever Lapping Tool
AR Receiver lapping tool05/14/2015
By eric small
The receiver lapping tool arrived earlier than expected and was well packaged for shipping. When unpacked and examined it seemed eel made except for a number of dents and dings that appear to have occurred during production. A few minutes spent with a stone cleaned up and smoothed those out. The actual process of lapping the receiver actually took less time than prepping the tool. As anticipated, the receiver was out of square as evidenced by wear patterns as lapping progressed. One of the major reasons for buying this particular tool was the flexible drive shaft which allows it to be used without worrying about operator misalignment exerting pressure unevenly. All in all it worked nicely and as advertised.
Wheeler Delta Series AR-15 Reciever Lapping Tool
AR lapper01/19/2015
By John Everett
Tool looks good, but at this time I have not used it as of today. If possible I will update when I have used my lapper.
Wheeler Delta Series AR-15 Reciever Lapping Tool
Good Product05/18/2014
By David
This tool does it's job quite efficiently. It make assembling an AR upper easier and more successful (accuracy) buy allowing someone without access to a lathe to easily square the receiver allowing the barrel nut to secure evenly.

I would recommend this product.
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Increase accuracy be ensuring a perfect fit of the barrel and receiver on an AR-15.