My rifle Project- “Kyle” is currently at a standstill.

The upper is mostly done. The barrel is installed in a slick side upper, as is is the gas system and forend. The rest of the upper is on hold because JP rifles is out of LMOS enhanced bolts. Mine has been on backorder for several weeks. I know there are other LMOS BCG’s out there, but I have good luck with JP rifles, so we will just shelve the upper for a bit. Once that BCG arrives, I will install it, the dust cover, then check the headspace and call the upper complete.

I am not going to even start machining the lower yet. That is because I am waiting for a Larue trigger. The machine work only takes about an hour, so until the trigger arrives, there is no point in continuing. If I get impatient, I will just get a Geisselle SSA and complete the project. The Geisselle is a better trigger, but I am trying to hold costs down a bit.

Still, I had some time to play in the shop, so I went ahead and completed the lower for Project Gaston. This is my first 80% pistol build. I decided to go with a polymer 80, so I wound up selecting the GST-9 from 80 percent Arms. Here is an overview:

The next post will detail what I did to complete this pistol. I will say that I hit a couple of snags, but a bit of ingenuity enabled be to overcome them pretty easily. More on that later.

Categories: Arts and Crafts


Sarin · December 12, 2021 at 10:19 pm

Very interested in the GST-9 follow up. Was it the Mod1 version? Picked one up myself and am starting the process.

My first rodeo with something that’s not an AR-pattern.

    Divemedic · December 13, 2021 at 7:24 am

    Yes, it is a Mod 1.

Peter Grant · December 13, 2021 at 6:58 am

If you need a LaRue trigger faster, get in touch (my e-mail address is below). I have one I’m not using at present, and can send it over.

    Divemedic · December 14, 2021 at 9:42 am

    Thanks. I think I am going to work on the handgun project while I wait.

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