Certificate of Authenticity for all Poly Technologies Imported Rifles

Poly Technologies
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Since their introduction to the U.S. Market in 1985, the Poly Technologies rifles have become some of the most collectible and sought-after guns in America. As the exclusive importer of Poly Technologies firearms and parts from 1985 to 1989, Keng’s Firearms Specialty, Inc. (KFS) has access to documents and product history that can add value to your Poly Technologies collection. Due to popular demand, KFS is now offering a certificate of authenticity for all Poly Technologies rifles that it imported into the United States.

The certificate is printed on archive-quality 100lb. paper, with a Poly Technologies, Inc. logo and watermark and KFS logo. The certificate provides the place of manufacture, import date, sold date, and other information valuable to the collector. Each certificate is signed by Da Keng, who is the current owner, president of KFS, and son of founder and former president of KFS David Keng.

Each signed certificate is available for $51.95, including the processing and shipping fee. Please allow two weeks for delivery.


  • 5

    Posted by Thad Trosper on 29th Aug 2021

    As described. Nice to know and to have

  • 5
    Documenting the Source

    Posted by Lloyd Brooks Compton on 6th Feb 2021

    The product is great and helped with understanding of where the rifle care from. More information on the quantity of Red Velvet NDM86 imported would have been better. The verification is fantastic though.

  • 4
    Need more definite details when manufacture

    Posted by Unknown on 20th Sep 2019

    The more detailed the information about the serial number like the exact date of manufacture.

  • 3
    Would have liked more info

    Posted by PolyTech Customer on 11th May 2017

    Nice item to add to a collection. Was disappointed it didn't include a little bit more information about the rifle.

  • 5
    The cap stone of the collection

    Posted by Paul clancy on 15th Sep 2016

    This makes a perfect capstone for the AKS! Very nice display item.

  • 5
    Polytech AK47/S Legend

    Posted by John on 29th Mar 2016

    It's great to have this verification on my Legend but I was hoping for a little more information to go with it; knowing the year it was built, how many were shipped and most important who it was sold to. I bought mine in 1998 in Georgia at a gun shop new in the box. I always have been curious about the nine year gap between the date sold by Keng's in 1989. Thank you Polytech

  • 5
    Polyteck AK-47 Serieal Number Certificate

    Posted by William C. Appleby on 25th Jan 2016

    I am pleased to find out where my AK-47 came from, all I knew was it was stamped Kengs Firearms. This will help me identify it's origin. Thanks again, William C. Appleby

  • 5
    A collectors must have!

    Posted by Brandon Bowling on 23rd Jan 2016

    This certificate adds value and is a must have for a piece of military history that will only become more valuable over time.

  • 5
    Thank you Polytech.

    Posted by PolyTech Customer on 23rd Dec 2015

    Received Letter of Authenticity today. Great work and Thank you Poly!! Just wish I knew what year it was built