Trigger Valve Mounting Assembly - Compatibility: Designed for replacement in a wide range of nailers, including RN175 roofing, RN175A roofing, FN250A, FC350, FM350A, FR350A, FR350, FR350MAG Magnesium, FR350MAG Magnesium, FR350 Round Head Framer, FRP350 3-Round-Head Frame, COIL200 5.1 cm coil, Coil250 coil, COIL350 3rd coil, DA250A 15-Gauge angle, DA250B 15-Gauge angle, FCP350, FN250B, MS200 Crown, and more. - Material: Made of plastic, providing robust and durable performance for your nailer. - Easy replacement: Suitable for professionals or DIYers; swapping the trigger valve mount is straightforward to ensure a seamless operation in your nailer. - Optimized control: The control switch offers precise Control over your nailer, delivering accurate and consistent results. Ergonomic design supports comfortable and efficient use. - Use scenarios: - Roofing and decking tasks with RN175 or RN175A roofers for reliable trigger play. - Framing projects using FR350, FR350MAG, FR350 Round Head Framer, or FRP350 frames for steady performance. - Coil-nailer work with COIL200, COIL250, or COIL350 requiring precise triggering and consistent results.