SIG SAUER CAL-X KIT, SIGMCX, 5.56 NATO, 9IN, LT, W Galvion making it a trusted choice

making it a trusted choice for demanding work

AKA the Picatinny rail

it offers excellent durability and cutting performance

Accurate Measurements: The Keson RR182 ensures precise readings in both feet and inches

The Micro Tracker Folder is opened using the prominent flipper

SIG SAUER CAL-X KIT, SIGMCX, 5.56 NATO, 9IN, LT, W Galvion making it a trusted choiceSIG SAUER offers upper assemblies and caliber exchange kits in various barrel lengths. All NFA rules apply to installation of these upper assemblies to lower receivers and caliber exchange kits to upper receivers. Upper assemblies and caliber exchange kits with barrel lengths less than 16 ? may only be affixed to lower receivers which (1) are not recorded as a rifle lower by the manufacturer and do not have a stock attached to the lower receiver or