I will inspect the gas port when I get home.
Interesting note about right / left POA. Wife shoots right. I shoot left (generally). She tends to hit up and right of me but when I shoot right it hits pretty much the same spot as when I shoot left. Using an EOTech 512.
Don't waste too much time trying to second guess your rifle ... if you didn't disassemble it between your Christmas Eve range trip and the 27th, then you have a magazine issue. Mine HATES the ASC mags and isn't really a fan of the old C-Products mags(both work decent in my AR's though?). My FS runs flawless using Brownells or D&H Industries mags ... it also likes the H&K Maritime mags!
On the magazine thing I have run with 100% no problems, Brownells, D&H and ELander steel mags. I download all of them to only 29 rounds and through two classes and a full summer of training no problems that were mag related or any thing else. When loaded to a full 30 rounds I occasionally did not get them seated completely, that was on me, but with 29 rounds never any problem. My FS does not like Wolf ammo unless it is real hot out or I have the gas set on high.
On the Stryker FS2K RSM: Loop the webbing through the eyelets on either side of the weapon and cinch up tight. The eyelets are plenty strong.
OK. Got the Brownells mags in but with the weather haven't had a chance to try them. Finally got a window this afternoon while it was above freezing and before the next wave of bad weather set in.I had a chance to run 4 30 round magazines. I did change 2 variables as I was using the Brownells mags and my new upper with the Weaver scope mounted.
I didn't have time to run a proper set of tests with both uppers.
Of the 4 magazines (120 rounds) I had 2 magazines of 62 Grain Lake City, 1 magazine of 55 Grain PMC XTAC, and 1 magazine of 77 Grain Black Hills OTM.
Brownells Mags 2014 01 05.jpg55 Gr 2014 01 05.jpg62 Gr 2014 01 05.jpg77 Gr 2014 01 05.jpg
Of the 120 rounds, no failures.
I will need more tests and tests with the original upper, but this is very encouraging.
Interesting that all 3 types shot almost the same vertically (vs. previous tests where the 77 grain was nearly 4 MOA lower) but the 77 grain is almost 3 MOA to the right. The wind was picking up at that point and it was starting to come down freezing rain so that may have had some effect. More tests will tell.
My work is done here...
Having cut my teeth on the F2K, I have a pretty firm grasp of what she likes.
Congrats on a great day and happy shooting!
Make Peace Or Die! Semper FI!
Which version of the Brownells mag is the recommend one for the FS 2000?
They offer many options
"Choose from a mil-spec stainless steel spring or our new, high lubricity, dry-lube-coated chrome silicon spring that’s corrosion-resistant certified to 500 hour salt spray standards, and less prone to spring “set.”
Looks like they come with a military green follower, but they also offer a Tactical version with a Magpul follower.
As long as the mag is a STANAG spec mag it will work. To answer your question, both.
AMP PS90 trigger install:
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Jan. 20, 2017 FREEDOM!!!