Description
ACM Kill Flash For 552/551 (Tan)
This is an ACM kill flash in tan, made to fit replica 552 and 551 style holographic sights. A kill flash is a honeycomb-pattern filter that sits over the front window of a sight to cut down the glint that sunlight can reflect off the glass.
The 552 and 551 are two of the best-known holographic sight designs, and replicas of them are among the most popular optics in airsoft. ACM makes a wide range of affordable replica optics and accessories, and a kill flash is a simple way to make your sight more practical and more authentic at the same time. The tan finish suits desert-toned and multicam-style setups.
How it works
The honeycomb cells act like hundreds of tiny tubes. Light coming straight through reaches the sight window as normal, but light arriving at an angle is blocked, so far less sunlight is reflected back towards anyone looking in your direction. You may notice the view becomes a little darker, which is the normal trade-off for reduced glare.
The kill flash also gives the front window some protection from twigs, knocks and stray BBs, which is useful on replica sights with thinner glass.
Fitting
Fitting methods vary between kill flash designs, so check the product images to see how this one attaches to the front of the sight. Make sure it sits securely and squarely before taking it to a game, and check that it does not block the sight’s controls.
Key features
- ACM honeycomb kill flash
- Made for 552 and 551 style holographic sights
- Reduces glint from the sight window
- Helps keep your position hidden in sunlight
- Adds some protection to the front window
- Tan finish
Compatibility
Made for replica 552 and 551 style holographic sights. Replica sights differ slightly in size from one maker to another, so compare your sight with the product images before ordering. ACM also makes kill flashes for ACOG-style scopes and micro dot sights.
Care and maintenance
Take the kill flash off now and then to clean the sight window behind it with a lens cloth, as dust can build up inside the honeycomb. Blow out debris rather than poking the cells, which can bend them.
Wipe off mud after games and store your optic dry.
Who is it for?
This kill flash suits players running a 552 or 551 style holographic sight who want to cut glare, protect the window and give their setup a more authentic, field-ready look.
Please note: The sight and rifle are not included.









