GBU, or Gas Block Utility, was created to provide a sturdy and compact platform for users to install / remove gas tube pins on low profile gas blocks, and install / remove gas block pin on the barrel.
Machined from a solid block of 6061 and anodized light green, it's 3.35" (L) x 2.45" (W) x 0.94 (H), it weighs 7.52 oz.
GBU has the following features:
* Rebated bottom for using a vise to secure the platform.
* Textured bottom to limit sliding on the workbench.
* Textured gas block cavity to reduce gas block movement inside the GBU.
* Blind hole slot to capture gas tube pin.
* Wide gas block cavity allows gas blocks up to 1.19" long (Crane spec gas block is 1" long.)
* Gas block cavity is bi-directional, i.e. barrel with gas block and gas tube can be seated on GBU with the muzzle facing left, or right. Left side accommodates gas blocks with barrels diameter up to 0.855. Right side barrel cavity is smaller, and accommodates barrels up to 0.760 diameter.
GBU has a light green or tan anodizing. To us, colors have a function, in the case of GBT and GBU, the function isn't camouflaging, just the opposite. There is no need to camouflage a bench tool, we don't want a black or dark fixture to be used with a black gas block, gas tube pin and barrel, where all the colors just blend in and make it hard to distinguish one from another, especially in less than ideal lighting conditions. GBU's light green or tan color also makes it stand out among other fixtures and armorer tools, most of which are probably all black.
GBU's circular lines below and rough texture inside the gas block cavity are by design, lest anyone should think they're tool marks, these take machining time to put in place. Whereas it would have been good enough to have consistent surface throughout the GBU exterior, we put in thoughtful and useful touches. The textures are one of them, the other is the finger access relief access above and below the gas block cavity.
Proudly designed and made in the USA.
NOTE:
GBU is compatible with low profile gas blocks. It is incompatible with TDP spec front sight post/gas blocks, or any adjustable gas blocks.
GBU may be incompatible with gas blocks that use a tapered pin.
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