Cans glow but they are less of a give away then the huge donut of light caused by a dam flash suppressor. You want attention go down range about 200 meters and watch back up range at a flash suppressor at night with NVDs. They disperse the light but only make the heat signature a huge donut, reason no flash suppressor on the M24. When it comes out as a point of heat it is next to undetectable at range. Now close on it is very noticeable but on a sniper rifle we don't normally do "close on" covertly and then we use a can.
The LaRue weapon is well made and does not need "tweaking".
__________________
Hold Hard guys
Rick B.
Knowledge is knowing a tomato is a fruit.
Wisdom is knowing it is great on a hamburger but not so great sticking one up your ass.
Author - Richard.
Experience is what you get right after you need it.
Author unknown.