Description
S&T M4 NSR 13.5″ AEG (Keymod, Full Metal, ST-AEG-85)
The S&T M4 NSR 13.5″ is a full metal M4-style electric airsoft rifle fitted with a 13.5-inch NSR-style Keymod handguard. The long, slim free-floating handguard gives the rifle a modern look and plenty of room for accessories, while the M4 layout keeps it familiar and easy to use.
S&T is a well-established maker of good-value replicas, and its full metal M4s give players a solid, realistic-feeling rifle without a premium price. The NSR 13.5″ suits players who want a modern M4 with a long handguard for woodland and mixed sites.
Build and design
Our listing gives full metal construction, which gives the rifle a solid, realistic weight and feel. The 13.5-inch Keymod handguard extends well along the barrel, so you can hold the rifle with your support hand further forward for better control, and fit rail sections, a grip, a torch or a laser exactly where you want them.
Please check the product photos for the exact stock, grip, sights and muzzle device fitted to this version.
Performance
As an AEG, the NSR is powered by a rechargeable battery, so there is no gas to buy and performance stays consistent in cold weather. Set the hop-up by starting with it off and adding a little at a time until the BBs fly flat, then stick to one brand and weight of seamless BB.
Our listing does not state the battery type or where it fits; please check the manual or ask us before buying a battery.
Customising
M4-pattern rifles have the biggest range of accessories in airsoft. A red dot or low-power scope on the top rail, a foregrip and a sling are popular first additions, and Keymod rail sections let you keep the handguard slim while adding only what you need.
Key features
- M4-style AEG from S&T
- Full metal construction (as named)
- 13.5-inch NSR-style Keymod handguard
- Long top rail for optics
- Adjustable hop-up
- Model code ST-AEG-85
Compatibility
The NSR takes M4/M16-style AEG magazines; magwell tolerances vary, so try one spare before buying several. Keymod rail sections and accessories fit the handguard, and standard 20mm optics fit the top rail.
Use 0.20g to 0.25g high-quality seamless BBs.
Care and maintenance
Take the battery out after every game and store it separately at a sensible storage charge, rather than leaving it connected inside the replica. Charge LiPo batteries with a proper balance charger, keep them in a LiPo-safe bag and never leave them charging unattended; NiMH packs should be charged with a smart charger that stops when the pack is full.
Run a cleaning rod with a lightly dampened patch through the inner barrel from time to time to clear dirt and residue, which keeps the hop-up consistent. Use good-quality seamless BBs, never reuse BBs that have been on the ground, and wipe the outside over after damp or muddy games. Leave gearbox work, shimming and spring changes to a competent technician.
Check the handguard screws from time to time, especially after fitting or moving accessories.
Who is it for?
The S&T M4 NSR 13.5″ suits players who want a solid, full metal M4 with a modern long handguard at a sensible price, whether as a first rifle or an upgrade from a polymer rifle.
Please note: Battery, charger and BBs are not listed as included. Always wear suitable eye protection, and full-face protection where your site requires it, when using or testing any airsoft replica.
