MA GPT (Gas Tube Pin Tool)

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5
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5
Your Price: $35.00
Out of Stock.
Part Number:MA-GPT

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 power 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 Forward Controls Design & Modern Armory. Forward Controls Design's version can be found here: https://www.forwardcontrolsdesign.com/GPT-Gas-tube-Pin-Tool_p_218.html


Compatible with most gas blocks including Modern Armory, FCD GBF (Gas Block, Forward Controls), BCM, Rainier, VLTOR, Knight's Armament, 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, BA Hanson, Luth AR, and DPMS, and adjustable gas blocks.
4 Stars
Armorer
The product works very well for low profile standard gas blocks.
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Blackfoot . on 1/23/2020
4
5 Stars
A must have!
This little tool is worth every penny. Makes installing and removing gas tubes a 20 second process.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Georgia. on 7/23/2020
5
4 Stars
Almost perfect
This gas block tool was almost perfect. Needs a cutout to be able to use with adjustable gas blocks and it would be perfect. Just need to meill out a small section. Otherwise great product.
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Reviewed by:  from Ca. on 12/10/2021
4
4 Stars
Good product
Didn't fit my gas block I had (Aero Precision low profile). Was a tad too small to fit inside the block. It is made really good and the coating finish is nice on it. Not going to give it a bad review because of the little issue I had with it but maybe the company will make the opening a tad wider. Just need another millimeter or two and it would have been perfect. I should have read the description and got the inside diameter before purchasing. Just to a bet that it would fit. But overall its nice.
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Reviewed by:  from GA. on 3/24/2021
4
5 Stars
A must have!
So this tool is a must for anyone building AR's. It make the gas tube installation very easy and fast. I'm probably going to buy a second one just to modify it take adjustable gas blocks. I highly recommend this bench block.
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Reviewed by:  from Kalispell, MT. on 3/13/2021
5

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