SLR Rifleworks make some extremely nice Rails and Gas Blocks which are now on sale for Labor Day. Starting now through Monday (9/7/15) save 10% off on all 5.56 Rails and Gas Blocks and 15% off all .308 Rails. Plus, if you decide to really do it up and get your order total over $35o, you’ll get Free Shipping. Below I have included a picture of two of my favorite ARs. On top is a .308 and on bottom is a 5.56 AR Pistol, both with SLR Rails and Gas Blocks. Add some awesome to your build by getting in on this deal at www.SLRRifleworks.com.