The Tokyo Marui MP7A1 AEG is a proven performer, but its factory ambidextrous selector lever presents real-world problems. Its large, protruding shape catches on gear and fingers, while the weak detent makes accidental mode switching all too easy?frustrations that no frontline player needs.

First Factory solves this with a precision-machined aluminum selector system. The left lever is now low-profile and shortened, eliminating thumb interference and reducing snag hazards during transitions. The right-side lever is completely removed and replaced with a flush indicator cap, keeping the trigger finger clear and preventing unintended adjustments.

The result is a crisp, positive click that locks settings firmly in place, allowing you to focus entirely on shooting. Compatible with Tokyo Marui MP7A1 AEG models only (not gas-blowback or other brands), this compact upgrade delivers reliability and ergonomic peace of mind in one simple package.

Key Features

• Stock selector is bulky, snags on fingers/gear, and has a weak detent that causes accidental mode changes.

• Left lever redesigned to be low-profile and short ? avoids thumb interference and reduces transition snags.

• Right lever removed entirely, replaced with a flush cap ? keeps trigger finger clear and prevents unintended switching.

• Precision aluminum construction delivers a crisp, secure click that holds the selected mode firmly.

• Compatible only with Tokyo Marui MP7A1 AEG (black/tan) ? not for gas-blowback or other brands (KSC, VFC, etc.).

• Enhances handling and reduces distractions, letting you stay focused on shooting.