7.5 inch ar pistol Listing ID: 3094344

https ://mcsgearup.com/3-5-short-buffer-tube-system-qr-sling-adapter-cap-black/

85$ 3.5 inch buffer tube

https ://sightmark.com/products/ultra-shot-r-spec-reflex-sight

180$ sight with options for Geen and red sights with 4 different settings of optics

https ://kakindustry.com/complete-ar15-upper-22-tcm-8-625-barrel-7-2-mlok/

500$ ar 7.5 inch upper fired 1 time to make sure gas block was working correctly