Delta Armory M4 SilentOps RIS 7" CHARLIE Airsoft Rifle — Black

The Delta Armory M4 SilentOps RIS 7" CHARLIE is an AR-15-style airsoft gun featuring a 178 mm (7") RIS handguard, an ABS receiver, and an overall length adjustable from 730 mm to 810 mm via the telescopic stock. Weighing 2180 g, it is aimed at players looking for a compact M4 platform that is ready to accept tactical accessories on Picatinny rails straight out of the box.

The drive system is built around a version 2 gearbox with Quiet Spring Cycle (QSC), 14 piston teeth, 7 mm metal bearings, and a metal spring guide: the combination reduces vibration during the cycle and extends the service life of internal components compared to non-QSC versions. Muzzle velocity is 115 m/s with 0.25 g BBs, with a recommended weight range of 0.25 g to 0.28 g to balance trajectory and hop-up chamber precision. The barrel thread is 14 mm negative (CCW), compatible with the vast majority of suppressors and muzzle devices on the airsoft market.

The plastic mid-cap magazine holding 120 BBs requires no winding like traditional hi-caps, providing quiet and consistent feeding; the absence of a MOSFET and onboard processor keeps maintenance straightforward, though it limits rate-of-fire programming options. The battery — not included — is a buffer tube stick type with a Small Tamiya connector: a widely available format, though it does not support larger LiPo batteries without an adapter. The lack of blowback keeps energy consumption low and the cycle quiet, consistent with the SilentOps name.

Key features

• The V2 QSC gearbox combines a quiet cycle and 14 piston teeth with 7 mm metal bearings for improved internal durability.
• Adjustable length from 730 to 810 mm adapts the airsoft gun to different environments and kit configurations.
• The 178 mm RIS handguard with Picatinny rails on all sides allows torches, vertical grips, and lasers to be fitted without additional adapters.
• The 14 mm CCW thread is the most common standard in airsoft, compatible with nearly all muzzle accessories.
• The 120-round mid-cap magazine feeds quietly without winding, in keeping with the replica's stealth focus.
• The absence of blowback and advanced electronics reduces potential failure points and simplifies field maintenance.

In the box

• Delta Armory M4 SilentOps RIS 7" CHARLIE airsoft gun
• 120-round mid-cap magazine