No Sales Tax (except Ohio) :(
1) Sturdy 7075 Aluminum and hardened steel construction. I have machined a lot of 7075 aluminum and it is tough stuff, don't worry about it's strength. 2) Can be used with standard wood for-end with sling stud. Has protective padding so it wont mar the wood. 3) Comes with adapter to mount to any Picatinny rail. 4) Height adjustment is in steps and easily accomplished through a simple push of a button. 5) Light weight. With adapter at 12.4oz /.352kg. With Out Adapter at 10.0oz / .283kg