Semi-Automatic CO2 Powered Saturn M4 RIS from Swiss Arms.

Air rifles can't be sent 'mail order' but they can be delivered to your local RFD subject to a fee. Or they can be collected in store. Please contact us for details.

Meet the M4 Saturn - a convincing M4-style replica that brings authentic ergonomics and CO₂ convenience to your shooting sessions. Chambered for 4.5mm steel BBs and powered by CO2, the Saturn pairs a weighty, realistic feel with simple, repeatable shooting so you can focus on lining up the shot, not fussing with complex systems. Finished in matt black, it’s designed to look right on the field, in a training kit, or on the range.

Key features:
• Calibre: 4.5 mm BB
• Propulsion: CO₂ powered for consistent follow-up shots and easy reloading of gas.
• Realistic handling: M4-style ergonomics and control layout for natural shoulder-to-sight alignment.
• Accessory-ready: Picatinny-style rail(s) for optics, lights or grips so you can customise your setup.
• Adjustable stock: Tailor the length of pull to your stance and kit.
• Matte black finish: Tactical, low-reflection look that stays understated and hard-wearing.
• Simple maintenance: Designed for routine care — keep it clean, replace seals as needed, and store dry.

Who it’s for?
Perfect for hobby shooters, plinking, basic tactical drills, and collectors who want an M4-style replica with CO₂ convenience. Not intended as a weapon — intended for safe recreational use by responsible adults.