I just finished building a new Olympic Arms PCR-4 on Veteran's Day.  Seemed like an appropriate way of honoring all of our nations veterans by building a new rifle.  

The rifle turned out excellent. I was especially pleased with the fit between the upper and lower receiver and also the perfect color match between them. This is noted as the lower receiver was manufactured in 1998 and the upper receiver was just manufactured in 2003.

I took it out to the range and it performed flawlessly with miscellaneous ammunition. Interestingly enough it shot better groups with the miscellaneous home reloads and Black Hills reloads than it did with Federal Eagle ammunition.

Olympic Arms continues to build quality AR-15 parts. I first built three of them approximately 16-17 years ago, and they also functioned flawlessly. Considering they are one of the only true manufacturers of AR-15 rifles, the second oldest continuous manufacturer, the excellent warranty and the good market pricing for their products I don't understand why so many of the boards are flaming them.

I would highly recommend them to anyone looking to purchase a new AR-15, or planning on building one. A group of us are planning a purchase of lower receivers to build several more in the immediate future.

Same experience here.

My son & I built a PCR-4 for him about a year ago. We bought the Upper kit/lower parts kit direct from Oly when it was on sale in the Fall of 2002, and the stripped lower thru a local FFL.

It took us 2 hours to assemble the lower using the assembly instructions right here on AR15.com, fit and finish were top notch, it has functioned flawlessly with about 3,000 rounds thru it so far, and it is very accurate and functions well with all kinds of ammo.  

All in all, he is very satisfied with it, not to mention the savings in cost and the knowledge we gained by building it.