I have a stock krytac kriss vector (standard) with stock internals. Initially shooting at 295 fps on .25s, now dropped to 270~ fps. I use a 8.4 lipo as always worried about 11.1 ruining internals.
I was thinking of a prommy purple hop rubber, potentially flat hopped and getting a tight bore barrel (extended and getting a suppressor to fit).
I'm looking to make this a woodland build as I already have a compact m4. Any advice would be great.
TIA