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One block works on 223-338Lapua without any adjustments needed
6oz and the barrel shroud model weighs ~4oz
The The Adaptive Tuning System (ATS) is easily moved from rifle to rifle and does NOT require any additional gunsmith work
It will support barrels up to ~
If you have a timed muzzle brake or a muzzle brake that is not self timing via a reverse jam nut
ATS Clamp On Competition Tuner One block works on 223-338LapuaThe new ATS Clamp on Tuner allows all the same great features of the current competition model but does not require you to modify your existing barrel or use your existing threads. The current model supports barrels from 1. 03 1. 05" in diameter One (1) set of shims available upon request for smaller diameter barrels. Please include shim size in notes at time of order. If you have a rifle with barrel diameter that you are interested in our clamp on