You spelled suppressor wrong
Ha, not looking for one of those, just something to reduce flash when shooting in low light conditions.
It is 5 years old and there are likely newer models but here is a comparison with numbers and pictures.
https://www.thetruthaboutguns.com/ar-15-flash-hider-shootout/
Probably a stupid question, but I have never messed with muzzle devices before... If the barrel is already threaded, do I just screw the new flash hider on? Is there any skill needed to install one properly?
KVP Linear Compensator.
If I go with the JP 3 pronged flash hider, I guess it just threads on? No timing needed?
If you might want a combo device thats not the A2 birdcage, the Strike Industries J-Comp is worth a look. It does suppress the flash a bit, and also functions decently as a brake/compensator. It will be louder for anyone next to you, though, so just be aware of that. Best part is aside from an A2 birdcage its one of the cheaper options available.
I'd just throw an A2 birdcage on it.
That's what I put on my Ruger Ranch in 5.56. Works fine.
A crush washer also serves to prevent the device from coming loose. It's kind of like a lock washer you use with a bolt and nut. It exerts an additional force along the axis of the threads to deter rotation by the resultant friction. A used crush washer should be discarded because its "crush" side has already been deformed.A crush washer may be required to properly index the device, but other than that they just thread on.
A crush washer also serves to prevent the device from coming loose. It's kind of like a lock washer you use with a bolt and nut. It exerts an additional force along the axis of the threads to deter rotation by the resultant friction. A used crush washer should be discarded because its "crush" side has already been deformed.