SCAR-H GBBR DMR

1 hour ago, Wo1f said:

I see now. A fixed amount of gas is released with each shot. The NPAS dictates ratio of that between the action and the BB.
A tightbore barrel will further increase FPS.

In terms of gas, will the Angry Gun nozzle be able to accommodate 500, or will I need to use Black Gas? And if I use Black Gas, are there any stock parts that need changing to handle the tougher loads?

 
It should be able to run 500 FPS fine. What I will say is you should always use strong gas. Personally I’d run propane and then mapp gas when colder. When I sold mine I demonstrated this to the guy buying it. One mag with asg ultrair (shittest gas on the planet..) shot 23 shots. One with nuprol red shot 93 shots. That’s down the the pressure difference between the two gasses. 

 
It should be able to run 500 FPS fine. What I will say is you should always use strong gas. Personally I’d run propane and then mapp gas when colder. When I sold mine I demonstrated this to the guy buying it. One mag with asg ultrair (shittest gas on the planet..) shot 23 shots. One with nuprol red shot 93 shots. That’s down the the pressure difference between the two gasses. 
I now run Nuprol Red through my pistol as standard when I was displeased with the ASG Ultrair the local shop had been peddling for the best part of a year insisting it was “top of the line” and “engineered for performance” before I caught on that I was ending up buying a new bottle from them every couple of months. I’m guessing red will probably be the ideal gas for the SCAR, shifting to black when it’s under 18 degrees?

 
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Scar will happily take red/black gas all day long. My shop/site was doing the same trying to sell that asg crap. The reason I think it’s not so good is because it’s 10% butane. 

 
Nope,

Wanted one of these DMR scopes:

https://www.trijicon.com/na_en/products/product3.php?pid=TA648

But I think I’ll go with one of these:

https://www.ncstar.com/optics-acc/combos/ultimate-sighting-system-combos/stm3942gdv2-ussgenii3-9x42mil-retmtrd

Designed for 5.56 so fairly robust too, gets good reviews, definitely seems decent bang for buck before venturing into the >£100 stuff for airsoft.

 
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