Will Scar16s Safety Switch break-in and get quieter?
I just got my SCAR16s. Its very nice but the safety selector is a bit loud for my taste. I usually take the safety off right before I take a shot at a hog. I have been able to manipulate the AR10 and 15 safety selectors with my fingers to quietly go into "fire" mode. It seems to take more effort with the SCAR. Will the switch eventually break in and I'll be able to select "fire" more quietly?
I removed the safety and filled the safety plunger notches with Garand grease (Plastilube). Much quieter now. I also installed the Magpul long selector on the L.H. side, and used the factory L.H. selector on the R. H. side, so both selectors are close to the same length. This gives me more control over the lever on the R.H. side. For some reason, even though I shoot right handed, I tend to use the r.h. safety lever more then the left, so having a longer lever helps. Next step would be to lightly polish out the areas that the plunger rides over, but for now mine is quieter by a bunch. I had never noticed how loud the safety is until you mentioned it, but mine made a noticeable snap when used.
Don't grease anything. I have found that the sharp edge leading into the pocket that the plunger snaps into when the rifle is in the 'fire' position needs to be rounded. This will make it easy to get the rifle off of safe without any noise. Use a little wet/dry fine paper and round the edge on that one side only. You don't want to round the other edge as that would make it easier to get off of safe. The spot that needs rounding is evident just by looking at the underside of the safety drum, and no doubt will round itself with use anyway, but the drum is pretty hard steel so it may take a long time to do this.
The most likely result of too much grease would be sluggish safety performance when it gets cold, because the grease will work it's way into the plunger/spring cavity. Just use Break Free on everything, and lightly at that.
The drum can be removed only with the hammer cocked. Remove the r.h. safety lever, and with the safety in the fire position, work it gently out to the left of the housing. You will have to move the safety lever up and down slightly as you pull to the left. Do not pull the trigger at any time during the removal. After the safety is out you can, but not without supporting the hammer so that it will not slam forward. Assembly: With the hammer cocked, insert the safety drum until it rides on the plunger, safety lever in the 'fire' position. Press down on the tab the r.h. side lever attaches to and depress the plunger, at the same time press to the right the entire safety assembly, slightly moving the lever up and down. The safety will pop back in, then attach the r.h. lever and install on rifle. Do this procedure only if you have confidence in your mechanical ability, and do this at your own risk.
I have a similar issue.
When I click the safety off and squeeze the trigger the distal end of the barrel gets loud.
I realize that part of this is indeed nitpicking, but I remember horror stories about being 'heard' in the jungle, and the wrapping of the AK safety's with fishing line to quiet them down, etc. The SCAR safety is a little noisy, and why not quiet it down a bit. It is certainly loud enough for cornholio to be concerned about when hunting hogs, and I can imagine it would be a bit more of a concern if two legged game was being hunted.