If you've got a few EXTRA bucks burning a hole in your pocket, may I be so bold as to suggest... http://www.gandrtactical.com/cgi-bin...on&key=LWR-BCM
Of late, I have ordered them with the trigger of my choice (Geissele ), but otherwise stripped. I can usually swing deals on gently used stocks, grips, and even trigger guards on gunboards, and save money over retail new. I've been dealing with Grant for 4 years now, and I've never got a bad lower from him; even when I ordered a BCM 'scratch 'n' dent' special (cosmetic blemish/factory second), it runs as well as my factory new BCM lowers!
I'm running his lowers on 3 of my 4 rifles, with nary a burp in all these years!