Tactical Rail Slots 20mm Rail Size

Our Take

This is a tiny rail section — the size field says approx. 25.4/30 x 20 mm, which is basically a short block for one small accessory: a compact light, a laser, or a micro dot on a gun that lacks rail space. At 42 g you won’t feel it. The listing is thin — no mention of what it mounts to, so check whether it’s a clamp-on piece or something you bolt down. For airguns, rimfires, or adding a rail to a bare handguard, this kind of block is handy. Just don’t expect to fit a full-size optic on 20 mm of rail; it’s built for small stuff.