Description
ACM 551 Scope with Red and Green Holographic Sight (Color Box – Black)
This ACM sight is a replica of the 551-style holographic sight in black, supplied in a colour box as named, with red and green reticle options. The 551 is one of the most recognisable optics seen on modern military and police rifles, and black suits almost any build.
ACM produces affordable accessories for players who want the look and function of a classic optic without the price of a real-steel unit. The 551 style is a popular choice for M4s, MP5s and shotguns, and gives you fast, unmagnified, both-eyes-open aiming. A tan version is also listed.
Using a holographic-style sight
Look at the target with both eyes open and let the reticle settle onto it. With no magnification, your awareness of what is around you is not reduced, which suits the short and medium ranges where most airsoft is played. Choose red or green to suit the light and background on the day, and keep the brightness just high enough to see the reticle clearly.
Zero the sight after setting your hop-up, firing groups at your usual engagement distance and adjusting until the reticle matches your point of impact.
Mounting
The 551 style is designed to sit on a rail. Set it far enough forward that you can see the whole window with your head in its normal position on the stock, and tighten the mount firmly. Check the product images for the mount supplied with this version before ordering.
Key features
- 551-style holographic replica sight
- Red and green reticle options (as named)
- Wide window for fast target pick-up
- No magnification for both-eyes-open aiming
- Black finish
- Supplied in a colour box (as named)
- Tan version also listed
Compatibility
For replicas with a suitable accessory rail, usually a 20mm rail; check the images and your replica’s rail space before ordering. A flip-to-side magnifier can be used behind sights of this type if your rail has room. We also list ACM kill flash units made for 551/552 sights. This is a replica optic for airsoft use only.
Care and maintenance
Clean the lenses with a soft lens cloth or lens pen only, and avoid wiping grit across the glass. A lens protector or kill flash is worth fitting, as a direct BB hit can crack an exposed lens.
Switch the sight off after use, remove the battery if it will be stored for a while, and check the mount is tight before each game day.
Who is it for?
Players who want an affordable 551-style sight in black with a choice of red or green reticle, for quick target acquisition at short and medium range.
Please note: Battery type and inclusion are not stated on our listing. This is a replica sight for airsoft use only.
