A Little Word on G&G Gearbox Locator Screws

So I am currently working on a G&G GS550 for a friend. It is a really well made replica of the Sig Sauer SG550 which features a standard version 3 gearbox shell. One interesting engineering design characteristic of G&G airsoft guns is the implementation of locator studs. These studs position the gearbox firmly in place […]