I'm wanting to upgrade the trigger on my spikes lower. I'm new to AR platform rifles. I'm used to a very smooth 2lb tigger in my bolt rifles. Any suggestions of what I could do my self? Or what I could do as far as just purchasing a drop in. Again Im new to AR's I've done lots of reading on line and talking to people at multiple gun shops. If you talk to me like a child I will not be offended at all. Thanks in advance.