These guys are great. Very professional and item arrived in good time. I hope to get a bigger crossbow from them in due course. The anglo arms op-360 is great. Not super impressed with the site rail, its only held on with 1 screw which allows for movement, throwing off the aim. I actually modified it, and put 4 little pins in the rail, going down into the body, by driling a tiny pilot hole and then heating a pin and pushing them down through the pilot hole into the base. I asked the guys for some feedback, but haven't heard back, butbi would imagine they are busy with Christmas orders.