Can use some advice on Building MK18 Replica

[Joeballz]

That's exactly what I want. What flips ups and foreward grip are on that rifle?

[JSantoro]

Since we've pretty firmly established that you're not making a "replica" or "clone" of ANYthing (no SOPMOD and certainly no Mk18 had or as a midlength gas system)....this has turned into a "Is this BCM upper okay....?" and "What sling...?" thread.

It's a BCM upper. Yes, it's okay.

Slings are discussed, in detail and across several years, by punching "sling" into the keyword box of the Single Content tab of Search, selecting thread titles only and limiting the Search to the Tactical Gear subforum. It only nets one about 83 pages of threads. Not posts.....threads.