This boosts accuracy and zero repeatability through disassembly and reassembly when doing upkeep. Installation was straightforward and easy, excellent style and design. Only had to use one particular shim for getting it at eleven’oclock, excellent in shape and negligible if no hole. Following about 6 months or so of use https://edgaraueox.ampedpages.com/the-greatest-guide-to-knights-armament-rail-54045155