Gas block and tube. From the purchasing to receiving the… From the purchasing to receiving the items I must say I am impressed. I received email confirmation of the order status of shipment, tracking information and confirmation of delivery. This is how it should be done. Product was shipped the same day as ordered. I will definitely be shopping here again.

Always great company to do business… Always great company to do business with. Great prices and great customer service. Can’t thank them enough for all my guns,rifles and ammunition. Fast service and great atmosphere when buying a gun.

Great customer service Great customer service. Actual people respond and care about your satisfaction. It doesn't matter how big the purchase, they will make it right in a rare occasion a resolution is needed. Will do business again!

I’ve never experienced better customer… I’ve never experienced better customer service when buying a firearms part. I bought the dirty bird ambi lower. Alex communicated with me by email very promptly. He let me ship them an HRF concepts RCM (the polymer thing that clamps on the magwell to make it super flared) to ensure fitment was good, which it was. He included the RCM in the box when he shipped out the ambi lower to my FFL. I’ve yet to assemble to lower, but it seems to be very good quality with very nice controls, and I think it’s probably the most slept on lower in the industry.

Good price, good parts, no issues. Good price. Wish the shipping could've been a bit faster but considering it's December, I'm happy with it. I noticed the hand signed thank you. Nice touch. Was hoping for some stickers for my safe so I could advertise for you guys the next time I show off my collection but that's ok. Overall, I'm satisfied.