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LCT ZB-21M lower RIS handguard in black finish is an aluminum handguard styled after the Zenitco B-21M for LCT PP-19-01 Vityaz airsoft SMGs. It features a RIS rail system for mounting tactical accessories, a durable construction, and a profile that perfectly matches the receiver. It preserves the iconic appearance while allowing you to upgrade your SMG to a modern tactical configuration.

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: LCT
LCT0165
LCT ZB-19 Upper RIS Handguard in black is an aluminum upper handguard styled after the Zenitco B-19 for LCT AK (LCK Series) airsoft rifles. It features a RIS mounting system for tactical accessories, a robust construction, and a profile that precisely matches the rifle receiver. It preserves the rifle's iconic appearance while allowing it to be upgraded...
: LCT
LCT0181
LCT CNC aluminum ZRK-6 RIS vertical grip in black is a durable replica of the Zenitco RK-6 vertical grip with RIS mounting. The CNC-machined 6061 aluminum body provides a secure grip and rigid attachment. Its compact 80 mm length won't interfere with weapon handling on AEG, GBB, and HPA platforms. The grip also features an internal storage compartment...
: FMA
TB1075-BK
AN/PEQ15 LA5-C Ultra High Power airsoft version by FMA in black color. LED flashlight with functional IR covers. More powerful green and IR laser for use with NVG. Compact size and durable nylon body. Mounts on RIS rail for weapons like M4, MK18, AK, CZ EVO, and others. PEQ box adds tactical versatility without adding weight. Powered by 2 CR123A...
The LCT ZB-21M lower handguard is machined from a single piece of aluminum and is designed for LCT PP-19-01 Vityaz (LCK Series) airsoft SMGs. It features a RIS rail system, allowing the installation of a vertical foregrip, bipod, tactical flashlight, PEQ laser module, and other tactical accessories. LCT designs its external parts with great attention to authentic proportions and precise fitment, ensuring the handguard perfectly follows the weapon's profile without looking like an aftermarket universal part. Its ergonomic shape provides a secure grip, excellent balance, and natural weapon handling during aiming and rapid target transitions. The design preserves the original platform's appearance while allowing full customization to suit your preferred setup. It is an excellent choice for building, restoring, or upgrading an LCT airsoft SMG while maintaining the quality and precise fit of genuine LCT components. The ZB-21M is an airsoft replica of the original Zenitco B-21M handguard and is designed to pair perfectly with the LCT ZB-19 upper handguard.
For most compatible weapons, replacing the handguard is a standard external upgrade and does not require any modification of the internal components. The mounting method may vary depending on the platform, so we recommend checking how the original handguard is attached before disassembly.
The handguard itself does not increase the weapon's performance. However, a high-quality, properly fitted handguard can improve front-end rigidity, handling, and provide a more stable platform for mounted accessories.
The handguard is primarily designed and dimensioned for the listed LCT models. Other manufacturers may use different receiver dimensions or tolerances, so compatibility cannot be guaranteed without fitting and minor modifications may be required.
Upgrading the handguard is not only about appearance. It can improve ergonomics, alter weight distribution, expand accessory mounting options, and help tailor the weapon to your preferred style of play. It is also an ideal replacement part when restoring or repairing a worn or loose original handguard.
| Color | Black |
| Length | 159 (mm) |
| Weight (g) | 180 (g) |
| Body/receiver material | Metal |
| Mounting System | RIS / Picatinny |