So I rethought my last PSA upper idea and found this one that is CL which I want because I want the barrel to last longer. Please take a look and tell me what you think. http://palmettostatearmory.com/inde...-16-heavy-mid-length-cl-mp-premium-upper.html Also I was looking at a spikes tactical lower. Are these any good? I would use the ST lower and the PSA upper in the same gun. Here's a link to the ST lower: http://www.spikestactical.com/new/z/zombie-lower-w-enhanced-kit-fde-ctr-stock-moe-grip-p-501.html I would want to use this AR-15 for a SHTF scenario and for a fun plonking gun. Let me know what you guys think about the idea of that upper and lower??