I've been wanting an AR pistol for awhile now, and 7.62x39 is something I've been meaning to add to my collection. I Was going to just go with a 5.56 pistol, but 7.62x39 performs very well out of a short barrel. Well enough that it could be more than just a range toy. So, after some looking I have three options to choose from. I'd appreciate some input. I'd like to keep this build as cheap as possible, but I won't sacrifice quality to save a few bucks (within reason). I have a stripped lower and an assembled upper to work with. OPTION 1. PSA AR-47 - ~$600 It's just a regular AR-15 chambered in 7.62x39. The only upper they currently have is not what I'd want the end result to be. It has your typical generic cheap AR drop in handguard. I'd want to upgrade it to a free float rail and remove that sight. From what I've read, C-Products Defense 7.62x39 mags are reliable. They aren't what I'd call cheap, but they're not expensive either. I could live with them. OPTION 2. PSA KS-47 ~$700 It's an unholy mix of an AR and an AK, but it's kinda cool for that reason. It uses some proprietary parts such as the lower receiver and I think the BCG. It's claim to fame is that it can use standard AK mags. It's close enough to what I want that I'd be happy. https://palmettostatearmory.com/psa...ght-m-lok-moe-ept-sba3-pistol-5165450182.html OPTION 3 Homebrew ~$760 I say eff it and build my own upper using the assembled upper I already have. Faxon 10.5" barrel - $159.00 PSA SBA3 lower build kit - $160 Faxon MuzzLok flash hider - $70 Magpul MOE K2 grip - $17 Seekings LP adjustable gas block - $56 Aero Precision gas tube - $16 Faxon 9" MLOK handguard - $121 EDIT: Forgot the BCG and CH Strike Industries Arch CH - $32 Faxon BCG - $130 I would get exactly what I want this way, other than being able to use AK mags. I'm leaning towards this option. That, and I finally get to do something with that assembled upper I've had sitting around since the last election.