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Top RIS rail for optics for the SR2M GBB airsoft submachine gun by Lambda Defence in black finish.
Original ZenitCo Б-17 markings for an authentic look.
Low-profile rail for mounting a red dot sight or optic on the upper receiver.
Durable aluminum alloy with a matte surface finish.
Secure mounting thanks to 4 screws.
SCRD-41
MAVERICK 1x22 Gen3 Red Dot Sight by Vector Optics in black (S-MIL). The best-selling airsoft red dot sight. 3 MOA dot for fast aiming. 11 brightness levels of red illumination. Side-loading battery tray for replacement without losing zero. Rubber-armored body for scratch resistance. Optical center height 41 mm. Includes a killflash to prevent lens...
SCRD-SM45
SCRAPPER 1x22 SOL Multi-Reticle Red Dot Sight by Vector Optics in black finish. Multi-Reticle (MTR) – 2 MOA dot, crosshair with circle, circle with dot. Durable body made from aerospace-grade aluminum 6061-T6. Solar power extends the life of the CR2032 battery up to 180,000 hours of operation. 10 brightness levels (8 visible + 2 for NVG). Motion...
RDSL34
SRD 1x18x20 VOD Red Dot Sight by VictOptics in black finish. 4 MOA red dot for quick target acquisition at short to medium ranges. Side-loading CR2032 battery allows replacement without removing the sight or losing zero. 8 daylight + 1 NVG brightness settings. IPX4 waterproof rating and 750G shock resistance. VOD™ / ACRO mounting footprint – perfect...
LAMBDA20
SR2M GBB gas airsoft submachine gun by Lambda Defence in black. Highly realistic replica of the Russian SR-2 Veresk (SR-2M). Steel body with a folding stock. Ideal for CQB and indoor combat. Strong blowback and fully adjustable hop-up. Ambidextrous fire selector. Folding vertical foregrip. Side and top RIS rails shown in photos are NOT included.
LAMBDA21
SR2M GBB gas airsoft submachine gun by Lambda Defence in brown. Highly realistic replica of the Russian SR-2 Veresk (SR-2M). Steel body with a folding stock. Ideal for CQB and indoor combat. Strong blowback and fully adjustable hop-up. Ambidextrous fire selector. Folding vertical foregrip. Side and top RIS rails shown in photos are NOT included.
Are you looking for a solid and elegant solution to equip your SR2M GBB SMG with a full-featured RIS rail for optics mounting? Do you need a part that preserves the original appearance while offering a robust solution for mounting a red dot sight? This low-profile RIS rail is designed for mounting red dot sights on the upper receiver of the Lambda Defence SR2M GBB. Thanks to precise manufacturing from a durable aluminum alloy and a weather- and wear-resistant matte finish, the rail maintains its looks and function even under intensive use. The rail does not disrupt the weapon’s silhouette and allows comfortable aiming even with optics featuring a low mounting base. Development in cooperation between Lambda Defence and Raptor TWI ensures precise compatibility and a secure, wobble-free fit. In addition, it faithfully reproduces the original ZenitCo model. When installing some wider optics such as XPS, 553, LCO, etc., the stock cannot be folded.

Example of the RIS rail installed on the SR2M GBB
| Color | Black |
| Length | 130 (mm) |
| Weight (g) | 150 (g) |
| Body/receiver material | Metal |