Geisselles new SPR barrel with special gas system
- Thread starter BurtG
- Start date
Ripcord Gas Block; .750 | Ripcord Industries
LEAD TIME: Ships within 2-3 Business Days Our Gass Hole is now available for Criterion barrels with .750 gas block journals! There are a ton of gas block options on the market today. While some companies make better components than others & are better at consistently holding very specific...
www.ripcordindustries.com
This might be a decent option for a tight fitting gas block.
Good to see that the Gasport groove don't go all the way around so a clamp or set screw AGB should work perfectly, honestly I haven't had a recent Geissele barrel that was over-gassed.
The new Gas Port diameter on the standard Barrels are gauging at .075-.076
Is that a keyway for a tabbed gas block?
Edit: Must be for their shitty cast gas block which now has a dowel pin protruding from the rear https://geissele.com/super-gas-block-black.html
Edit: Must be for their shitty cast gas block which now has a dowel pin protruding from the rear https://geissele.com/super-gas-block-black.html
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Would you be able to measure the distance between the centers of the two gas block dimples? I’m curious what the size is. I’m sure they spaced them for their gas block but I’m not a fan of their block since it’s cast instead of machined. Hopefully there is another block that lines up.
Ripcord Gas Block; .750 | Ripcord Industries
LEAD TIME: Ships within 2-3 Business Days Our Gass Hole is now available for Criterion barrels with .750 gas block journals! There are a ton of gas block options on the market today. While some companies make better components than others & are better at consistently holding very specific...
This might be a decent option for a tight fitting gas block.
Finding a tight fitting gas block can be a crap shoot in my experience. I don’t even worry about it anymore. If you do have a loose fit where the block slides around with little resistance, you can easily fix it by sealing it with Loctite 620.
Here is the method that I use that works well for me. I haven’t seen any carbon leaking from my gas blocks after applying the Loctite this way.
First, apply a thin bead of Loctite 620 around the barrel, directly in front of the gas block shoulder but behind the gas port. When you slide on the gas block, the rear of the gas block will be sealed. Don’t pull the gas block forward because you don’t want to smear the Loctite over the gas port.
Next, use the gas block set screw hole that doesn’t line up with the gas port hole. You are basically using this set screw hole as an access port to apply Loctite around the circumference of the barrel. Spin the gas block around the barrel, dabbing a small amount of Loctite 620 through the set screw hole, at a few different positions around the barrel. Then, spin the gas block around a few more times to spread out the Loctite. You’ll want to clean out the excess Loctite from the set screw threads before installing the set screws.
If you do it right, you’ll get a thin layer of Loctite behind and in front of the gas port that will seal everything up once cured.
EDIT: I also apply some Loctite 620 to the gas tube, behind the gas port hole, before sliding the tube into the gas block for pinning.
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I think @Bigjake83 has also posted pictures or explanations of how he seals his gas blocks. This is just a simple method that has worked for me. If it doesn’t 100% seal everything up, it will get you 90% of the way there and carbon will quickly seal up any remaining leaks.
It was tongue in cheek. 620 is wicking grade though and you should be able to apply it through the front of the gas block and gas tube (if block has open front).
I believe that Loctite 290 is the whicking grade thread locker while Loctite 620 is a high temp sleeve retaining compound. They are both green so it gets confusing but they are designed for different applications. I think 620 has a much higher temperature rating as well.
If anyone nabbed one of these and decided they didn’t want it give me a holler. I meant to buy one but fiddle farted around and missed out.
Gotcha, I've probably got evey type of Upper you can think of, enhanced and standard.
The quality of the current product lines from Geissele has been absolutely phenomenal with exceptional accuracy.
At this point i don't see the need to build with enhanced uppers, when I do my initial break in I'll perform a POI shift test to see if moving to a enhanced is warranted.
The current GFR line is utilizing the traditional upper to handguard system and they are showing exceptional accuracy, so again do t see the need.
One of the ideas I've been kicking around is building a complete LMT set-up.
I already have the MARS Ambidextrious Precision Lower and a 13.25" MPR upper. I could send one of the barrels to D-Willson and have him mod the barrel.
What y'all think?
I already have the MARS Ambidextrious Precision Lower and a 13.25" MPR upper. I could send one of the barrels to D-Willson and have him mod the barrel.
What y'all think?
Pump action AR with a FRT or nothing
Oh hell's ya!!..lol
I just don't need any more rifles, the Safes are overflowing something wicked to the point I'm playing fucking Jenga every time I want to grab something out.
So my way of thinking is smaller guns are the way to go moving forward, so the new project is a SBR CMMG Dissent MK4 9MM 10.5" Complete Upper that I'm pairing with a ADM UIC Ambi Lower.
I think the radial delay is really interesting especially for 10mm/45. That new Griffin Armament boltcarrier is interesting as well.
