I may have posted a few of these before but decided to put them all in one place since you can create a purchasing "strategy" to make the best use of them.    All working as of this morning, 10/3/14.

Code "GTA", $10 gift card with $50 purchase.

Code "G79", $15 off $100. It is listed on right on their home page but no expiration date so don't wait too long.

Code "G83", $50 off $300. Don't know expiration, found at a coupon sight.  Good coupon for big purchases.

Code "G4F", 7.5% off purchase through 10/31/14.  Once you go over $200, this coupon is better than "G79".  Once you go over $667, this coupon is better than "G83".  This coupon was originally set to expire in Sept but Brownells lists it as Oct so maybe it will keep going.