Sharps Bros & Rainier Arms Rifle Build: Completing the Upper Receiver

By Mike Searson

Opinion;
This is part two of Mike’s rundown on his build of the Sharps Bros & Rainier Firearms Overthrow Lower Receiver. Catch up on part one here.

USA – -(AmmoLand.com)- After assembling our Sharps Overthrow lower receiver, we turned our attention to the upper receiver. For some reason, this component of the rifle gives a lot of novice builders agita, because they hear terms that are unfamiliar such as barrel torque, headspace, timing and they worry about doing something incorrectly. Trust me; the upper receiver is almost as simple as assembling a lower receiver as long as you use the proper tools and components.

We went with the Rainier Arms UltraMatch Billet Upper (MOD 3).

In the past, we had a few other manufacturers, and builders steer us away from billetted uppers, even though they were using billetted lowers. The main reason they were cited was the looks of these type of uppers, and in the period they were correct. Well, that seems to have …Read the Rest

Source:: AmmoLand