I would like to take this opportunity to say what a pleasure it was to deal with Rock River Arms customer service on ordering a LAR-15 Varmint A4 carbine. They we're courteous and delivered just as expected. As for the fit, finish and overall quality all I can say is wow! The trigger is outstanding the receiver is so tightly fitted that I can't use a DPMS upper I had laying around. I liked it so much I ordered another model from them. Definitely better quality than the DMPS and Bushmaster that replaced it. I would not hesitate to purchase one again and highly recommend there products. This rifle really shoots using Fiocchi 77gr matchkings!