There are better lowers out there. The Oly Arms lower is fine, but the finish isn't its strong suit, IMHO. Basically painted aluminum, but mine functions very well. Other Mfg's have great anodized finishes, and lowers have come down in price.

Oly Arms barrels are top notch, especially their match grade stuff. My ML-2 match gun shoots 5 shot groups under a half inch. My heavy barrel upper is very accurate as well. Both are Oly Arms.

J&S has a selection of lowers available, but you should also check out Surplus Ammo & Arms in Lakewood, right by Tactical Tailor. They have everything you need.

Lowers are really easy. If you need help, bring it over and we can get the lower put together in 20 minutes or so.