So here's the whole story: I have passed 25 years with my employer and the service award is anything of my choosing up to a value of $500, including gift cards. The plant manager says a Palmetto State gift card is good to go. Palmetto sells a 9mm AR pistol with 8" barrel and KAK Shockwave brace for $550. For fifty bucks and transfer fee, I can get one. https://palmettostatearmory.com/psa-8-9mm-1-10-7-m-lok-moe-ept-shockwave-pistol-black.html Now where firm facts end and my ruminations begin. Throw the flag if you spot a fault in my plans. Acquire said pistol. Install carbine buffer and reinstall Shockwave brace on carbine buffer. Shoot it in this configuration. File Form 1. Wait. Install M4 stock on buffer when the stamp arrives. With the $500 "free money" (which cost me 25 years) I can get into an SBR for something less than $300. School me on any flaws or other considerations that I'm missing, please.