Ranger Armory Rail Mounted SF Plug Pressure Switch, Black

Every HPA engine needs something to open and close the air feed, and that component is the pressure switch. Ranger Armory's rail-mounted SF Plug Pressure Switch is the one that sits in your magazine body and does the job — threaded for the SF pattern that PolarStar, Wolverine, and most other HPA engines use.

Why rail mounted. Most pressure switches screw directly into a mag body. This one comes with Picatinny rail mounts, so you can bolt it right onto a rail. That makes it easier to fit into a custom magazine build, a rail-based mag chassis, or a test bench where you want the switch accessible rather than buried inside a body. The aluminum body with a rubber seal is what you expect: durable under repeated cycling and a reliable air seal when it closes.

What it pairs with. The SF Plug thread pattern is the most common in HPA — your PolarStar, Wolverine, and Redline engines will all pair with it. If you are building a mag body, upgrading a worn switch, or setting up a spare, this is the piece that turns the rail into a functional feed point. Your engine, magazine body, and air tank are separate pieces in the chain.

Ships with the pressure switch and a set of Picatinny rail mounts.