Used to converty dmps commercial buffer tube to mil - spec - UTG Pro AR15 6-position Receiver Extension Tube

Our first AR-15 was a commercial spec rifle from Dunham’s- Since then we have learned a bunch about building, buying, and maintaining rifles but this one has been hard to keep current because of the lack of commercial spec stock attachments. I always thought that a smart manufacture would design mils spec length / shape tubes with threads cut to fit the commercial spec receiver. One spec is rounded threads, one is for sharp pointed threads, even though the measurements are all the same on the thread pitch and depth. I saw a review where another shooter used this with great results and so I gave it try. Install was a breeze, lots of assembly grease and together it all went. Very happy with the outcome an would highly recommend this tube for anyone looking to do the same thing.