完整lower，$170：
https://palmettostatearmory.com/blem-psa-gen3-pa10-308-complete-moe-ept-lower-with-over-molded-grip.html
最便宜的整upper，$330：
https://palmettostatearmory.com/psa-gen3-pa10-16-mid-length-nitride-308-win-1-10-classic-upper-with-bcg-ch-black.html
我觉得应该可以用MI的two piece drop in free float，或者DD的Omega 9.0
再贵一些的，$420~430左右：
https://palmettostatearmory.com/psa-pa10-16-mid-length-308-win-1-10-nitride-15-lightweight-m-lok-upper-with-bcg-ch.html