Laylax Barrel Shim Ring Set 0.1mm for M4/AR15

If you have switched out the handguard or outer barrel on your M4/AR15 and now it wobbles you need Laylax's barrel shims to firm it up! These shims are basically small discs of aluminium which can be sandwiched between the outer barrel and upper receiver to adjust the fit with various different barrel nuts. If you are building an M4 platform, be it an AEG or GBBR, these handy shims are essential to have in the toolbox if you want a new handguard or outer barrel to fit perfectly at the right place with no wobble whatsoever.