Cass – Rifle Dynamics

I was looking for a .625 clamp on gas block and purchased the YHM clamp on gas block for 50.00 and it was too low. so, i bought the YHM riser for 30.00 to fix that and it was still too low to be even at the same plane of my Noveske N4 stripped upper I then purchased the other YHM riser for 20.00 and now my ARMS front sight is too high. I was about to throw in the towel and go free float but, I ponied up and bought your B.T.E USA receiver/rail height gas block and now I can hit the target with my ARMS 40L-F back up sights. The product was easy to install, I loved the chamfer that was like a funnel effect with the included gas tube roll pin, three 9/64 cap screws were a good addition to the design, finish is excellent, the witness hole to help me line up the gas tube port was a nice addition too. Shipping is fast and is free and the price is bang up. I will purchase from B.T.E.-USA again