The SAI Loaded has an excellent warranty and works well as a shooter. Springfield now makes most of their parts but the parts are not GI parts even though they have a drawing number and part number on each one.

The national match rifles don't have the chrome lined barrels. You will trade durability for accuracy. The standard GI M14 had the chrome lined barrel.

The closest thing to a hammer forged receiver M14 on the market is the LRB receiver. If you can get an LRB receiver and locate actual GI parts, you can have built a near copy of the GI M14. Smith Enterprises and Fulton Armory produce great rifles that are near GI copies.

You can come close to a GI rifle if you can locate an older Springfield M1A. Springfield used GI parts until the supply dried up. The receiver will be cast and not hammer forged but warranty overcomes the flaw.

There is a lot of good information in this thread. Don't expect the rifle to be a subMOA shooter. It was designed as a combat rifle. If you really want one, I recommend that you get the SAI M1A Loaded, either new, or used if you want GI parts, and shoot the crap out of it. While it is a dated platform, the M1A/M14 is fun to shoot.