Welcome to the site.
Quoted:
Good morning,
I am soon to receive my first AR! I've wanted one for quite some time and my great friend Jamie made it happen. A Stag Arms model 2. I'm very excited about it and have been looking at some accessories for it. As it's my first I am new to the rifle and have a question for you all.
Congrats. Welcome to the world of BRD.
One of them is changing out the handguard, buttstock and grip. I've been looking at the Magpul MOE kit. The complete kit comes with a replacement mil-spec buffer tube, etc. but I am unsure if I need these items? According to the Stag Arms site it says the upper is mil-spec but not sure if that applies to the buffer tube and parts? I'm don't know what constitutes a "commercial" vs mil-spec replacement part and who would need the buffer tube parts or not. It's really not less expensive to skip the buffer tube parts kit though.........
The Stag buffer tube (i.e. receiver extension) is mil-spec. If you're still curious, use the search function to find out the difference between mil-spec and commercial. It's been discussed a lot.
This is probably the best price you'll find on the kit new:
http://dsgarms.com/ProductInfo/MGMOEKITBLK.aspx
I say, get the whole kit. You can sell the parts you don't need. Email me if you want to sell the extra buffer tube. I've been looking for one.