40mm Short Picatinny/Weaver Scope Mount Rail
Description
40mm Short Picatinny Rail Section — Compact Mounting for Micro Accessories
The Problem
Not every handguard has enough rail space — and not every accessory needs a full-length rail. The 40mm Short Picatinny Rail Section adds exactly the right amount of rail for micro red dots, compact lights, and backup iron sights without wasting handguard space or adding unnecessary weight. At just 40mm long, it fits into crowded rail systems where longer sections can’t.
Why This Solves It
A quick tip from our team: before you take this to the field, spend 30 seconds adjusting the fit — it makes a bigger difference than you’d expect.
Key Features
- Ultra-Compact 40mm Length: At just 40mm (approximately 1.57 inches), this rail section fits between existing accessories on crowded handguards. Perfect for adding a backup sight behind a red dot or a compact light between a bipod and grip.
- 3-Slot Configuration: Three full-depth Picatinny slots provide solid mounting for micro red dots (like RMR, Holosun 507C), compact iron sights, and small weapon lights. Enough slots for secure lockup without excess rail.
- Aluminum Alloy Construction: CNC-machined from 6061 aluminum with a matte black anodized finish. The aluminum body is rigid enough for optics mounting — your zero won’t shift from rail flex under recoil.
- M-LOK / KeyMod / Direct Mount: Includes mounting hardware for M-LOK slots, KeyMod slots, and direct screw mounting. Adapts to whatever handguard system you’re running.
- Recoil Lug Included: The integrated recoil lug engages the handguard slot, preventing the rail from shifting under recoil forces. Critical for maintaining zero on mounted optics.
Technical Specifications
| Specification | Detail |
|---|---|
| Type | Short Picatinny Rail Section |
| Length | 40mm / 3-Slot |
| Material | 6061 Aluminum, Matte Black Anodized |
| Mount Compatibility | M-LOK / KeyMod / Direct Screw |
| Features | Integrated Recoil Lug |
Our Take: We have field-tested this gear and it delivers. No hype, just honest performance at a fair price. Whether on the range or in the field, this one gets the job done.
