Designed specifically to fit the inner “plus sign” feature in the HK416 locking bolt, this kit allows you to remove your handguard and grip using the same tool.
Design – Maritime Bit that works with three different bolts: Legacy HK416 handguard bolts, Geissele SMR HK handguard bolts and Haus Plus grip screws.
Drive compatibility – 1/4″ bit driver.
Material – The bit and screw are made from heat treated 17-4 stainless steel and the washer is made from 18-8 so all three parts are highly resistant to rust and corrosion and well suited to maritme applications.
- 17-4 stainless steel is magnetic so these bit work great with magnetic 1/4″ bit drivers
Bit compatibility – Genuine Heckler & Koch handguards for HK416, all Geissele SMR HK handguards and Haus Plus grip screws.
Screw compatibility – Any rifle that accepts standard 1/4″ – 28 grip screws.
Upgrade your existing rifles and simplify future builds with our Plus Maritime grip screw kit.
Kit Includes:
- 1 Driver bit – 17-4 Stainless Steel
- 1 Plus Grip screw – 17-4 Stainless Steel
- 1 Grip screw washer – 18-8 Stainless steel
Made In USA

























