I'm 16, and I want to build an 80%

[endermend]

Hi, I'm on my fathers account currently. I'm 16, and want to build an 80% AR. With these new laws coming up in 2018 regarding 80%, I'll be 17 then close to 18. I want to avoid all of them mainly the part regarding acquiring a serial number from the DOJ, and proving that I engraved it on the AR. I'd much rather engrave my own stuff/ info. My main question is: Can I build an 80% AR-15 as a minor in California? I've read some other threads here, and they've mainly said yes because a minor can own a firearm transferred via parent, and because they can... I can make a firearm. Is this true? I've looked pretty thoroughly through the states special laws and what not, and have not seen anything regarding age, except for pistols. I've seen in the AB 857, it says under Section 4 "An application made pursuant to subdivision (a) shall only8 be granted by the department if the applicant does all of the following: ..... (2) Presents proof of age and identity as specified in Section 16400. The applicant shall be 18 years of age or older to obtain a unique serial number or mark of identification for a firearm that is not a handgun, and shall be 121 years of age or older to obtain a unique serial number or mark of identification for a hand gun." From my knowledge, this doesn't come into effect until mid 2018, so if I finish my firearm prior, this doesn't/ shouldn't apply to me? I know I'm asking a loaded question, but I really want to build a m16a1/603 build.