GPT (Gas tube Pin Tool) is a jig tailor-made for installing and removing the gas tube roll pin on an AR15/M16 low profile gas block. Machined in 6061 aluminum and Type III hard coat anodized, GPT makes installing the gas tube pin on a low profile gas block painless. GPT is designed to be stable and surefooted, but it is no larger than it has to be, in order to retain a reasonable small footprint on the crowded workbench.
Most low profile gas blocks don’t have flats, and are hard to hold steady without requiring 3 hands to install the diminutive gas tube roll pin. GPT enables the user to install the gas tube roll pin, and remove it as well with ease.
We made its base thick and wide for stability, its base is rebated to allow the user to clamp it down in a vise. Thoughtful touches can be found on the GPT, from the scalloped finger access recess to the soft, rounded corners and edges, even its green color has a purpose. Most gas blocks are black, we wanted GPT to be anything but, as we found it more difficult to work on a black gas block that sits in a black jig. GPT’s green color provides a pleasant contrast and makes the black gas block stand out.
With a small Neodymium magnet placed on the gas block, it’s powerful enough to stand the gas tube roll pin can upright, perpendicular to the gas tube, above the gas tube pin. With one hand holding the gas block steady in the GPT, one can start tapping on the gas tube roll pin to get it started.
GPT is a collaboration between Modern Armory and Forward Controls Design. Modern Armory’s version can be found here https://modernarmory.net/GPT-Gas-Tube-Pin-Tool_p_609.html
Compatible with most gas blocks including Modern Armory, our GBF (Gas Block, Forward Controls), BCM, Rainier, VLTOR, Knight’s Armament, Badger Ordnance, Daniel Defense, SLR, or other low profile gas blocks based on the original Crane design.
Please measure your low profile gas block dimensions, as some are longer than others. GPT is made for Crane Mk12 pattern low profile gas blocks, the length of which is 1″. GPT can be modified to accommodate longer gas blocks.
MAX gas block length: 1.00
MAX gas block height: 1.35
Known incompatible low profile gas blocks: Aero, Luth AR, and DPMS, and adjustable gas blocks.
35 reviews for Forward Controls Design GPT (Gas tube Pin Tool)
Only logged in customers who have purchased this product may leave a review.
Related products
-
AR Build Kits, AR Parts And Accessories, Lower Parts, Tools
MSRP: $49.95$47.45 Read moreYou save $2.50
emmagee (verified owner) –
High quality, correct tool for the job. Saves time and looks good doing it.
Jamison (verified owner) –
A true headache saver.
Adam (verified owner) –
Why do I always wait until I’m frustrated before I break down and buy the right tool for the job? This character flaw turned into a handful of mutilated roll pins, and this guy made life so much easier. It was done in seconds, super handy. And, #ODGgang
spider242955 (verified owner) –
it does what its supposed to do
Dorsey (verified owner) –
As long as the dimensions of the gas block you are installing the tube into are compatible, it is a fantastic tool. It is not one size fits all.