Greetings! I am new to the board and was hoping to ask some questions in reference to building a Maryland legal AR-15 chambered in .556. I have already purchased an Aero Precision M4E1 stripped lower from my local FFL and I would like to buy an upper build kit from Palmetto State Armory but want to make sure I am building it legally in MD. I am a little confused as to what constitutes a legal rifle build in Maryland and what constitutes a legal pistol build? There are a couple of build kits that I am interested in listed below but I am unsure if I can build any of them legally and what actually makes them legal and what doesn't? If someone could please point me in the right direction as to which of the items listed below is legal it would be greatly appreciated! Merry Christmas and thank you very much for your help!
Here are the kits I am looking at and any feedback to any of them being legal in Maryland would be appreciated:
1. https://palmettostatearmory.com/psa...-lok-moe-ept-rifle-kit-w-mbus-sight-set1.html
2.https://palmettostatearmory.com/psa...eight-m-lok-classic-shockwave-pistol-kit.html
3.https://palmettostatearmory.com/psa-10-5-5-56-nato-1-7-nit-12-slant-m-lok-moe-ept-sba3-pk.html
4.https://palmettostatearmory.com/psa-10-5-5-56-nato-1-7-nit-12-slant-m-lok-moe-ept-sba3-pk.html
5. https://palmettostatearmory.com/psa...eight-m-lok-freedom-rifle-kit-5165450299.html
6.https://palmettostatearmory.com/psa...eight-m-lok-freedom-rifle-kit-5165450299.html
Here are the kits I am looking at and any feedback to any of them being legal in Maryland would be appreciated:
1. https://palmettostatearmory.com/psa...-lok-moe-ept-rifle-kit-w-mbus-sight-set1.html
2.https://palmettostatearmory.com/psa...eight-m-lok-classic-shockwave-pistol-kit.html
3.https://palmettostatearmory.com/psa-10-5-5-56-nato-1-7-nit-12-slant-m-lok-moe-ept-sba3-pk.html
4.https://palmettostatearmory.com/psa-10-5-5-56-nato-1-7-nit-12-slant-m-lok-moe-ept-sba3-pk.html
5. https://palmettostatearmory.com/psa...eight-m-lok-freedom-rifle-kit-5165450299.html
6.https://palmettostatearmory.com/psa...eight-m-lok-freedom-rifle-kit-5165450299.html