Building the Ultimate Lightwieght AR pistol pt 5, Optic, Buis, Handstop install

As we near e completion of the shortstack project we will be installing the Burris Fastfire 2 along with the UTG riser to allow for consistent co-witnessing with our BUIS. For our BUIS selection we have gone with a set of Troy Battle sights, pricey but very rugged and functional. Lastly, we will be installing the Magpul XTM hand stop kit to protect novice and experienced shooters alike from placing their support hand near the muzzle of this 7 inch AR pattern pistol.
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