Description
ACM Multi Functional ACOG Scope 4x32B (GL4X32B) (Black)
The ACM Multi Functional ACOG Scope 4x32B is a black, ACOG-style magnified optic for airsoft rifles. The 4×32 in the name means four times magnification through a 32mm objective lens, giving you a closer view of targets at longer range in a short, compact body that suits M4-type rifles and DMR builds.
ACM produces a wide range of affordable replica optics and accessories. The ACOG shape is one of the most recognisable military rifle sights, and a 4x scope is a popular choice for players who spend a lot of time on open outdoor sites, where spotting opponents in cover is half the battle. The “multi functional” description and the B suffix in the model code are as the item is named; please check the product photos for the exact reticle and any extra features.
Using a 4x optic
Magnification helps you identify targets, spot movement in hedgerows and judge where your BBs are landing at range. It is less suited to very close fighting, where a red dot or iron sights are faster, so many players pair a 4x scope with a small offset or top-mounted red dot for close work.
Fixed 4x magnification keeps things simple: there is no zoom ring to set, so you can concentrate on the shot.
Mounting and eye relief
Check the product photos for the mounting method supplied. Most ACOG-style scopes for airsoft sit on a standard top rail; position the scope so you get a full, clear picture without shadowing at the edges when your cheek is on the stock in your normal shooting position.
Take time to zero carefully. Set your hop-up for the BB weight you use, then fire groups at a fixed target at a longer range than you would for a red dot, adjusting the reticle until the BBs land where you aim.
Key features
- ACOG-style scope
- 4x magnification
- 32mm objective lens
- Compact body suits M4 and DMR builds
- Black finish
- Multi-functional design, as named
Compatibility
Intended for airsoft replicas with a suitable top rail; check the product photos for the mounting interface, and make sure your replica has a 20mm Picatinny-style rail with enough free length. Battery and illumination details are not stated on our listing, so check the photos and packaging.
Care and maintenance
Keep the lens caps or a cover on when the scope is not in use, and clean lenses only with a lens brush and microfibre cloth. Replica scopes are not designed to take direct BB hits, so a lens protector is worthwhile for close-range play.
If the scope gets wet, dry the outside and let it air in a warm room before storing it. Check the mount fixings before every game day, and if the scope has any illumination, remove the battery before long-term storage.
Who is it for?
Outdoor and woodland players, DMR users and anyone wanting a compact magnified optic to spot opponents at range on an M4-type rifle.
Please note: This is a replica optic for airsoft use. Mount, illumination and battery details are not listed; please check the photos and packaging.









