Years ago I ordered a LR308 (AR10 lower) while this rifle is not enumerated as a regulated fire arm FFL’s in this climate are not taking any chances. So a 77R was filed and I waited my 7 days. But you can buy an LR308 cash and carry. Go figure. You can go argue and depending on who you talk to the MSP will say it is either non regulated or they will say it can be turned into a regulated fire arm. Most FFL’s have wisely decided to avoid the sticky wicket by just filing the 77R. Can’t blame them there licenses can be revoked. So to them it is not worth it.