For some, 400 fps is all the power that they need. There are many styles of guns that are available at a variety of prices, not all of them will be cheap. They are available at their retail price, but if you do some research you can get cheap airsoft guns with 400 for as much as $75 off list price. Another way to buy cheap airsoft guns with fps is to buy used, buy privately, or to go on places like Craigslist to find cheap airsoft guns. Many paintball fields will have bulletin boards that airsoft gun owners will sell their 400 fps guns and other guns when they are getting out of the sport or upgrading their guns.

These are some of the guns that have 400 fps and that you can find for cheap with a little research:

• JG M4 RIS System w/ Scope 3×9-32 Long Range Shooter-JG M4 RIS System Marui with 3×9-32 scope included. Newest addition, all new upgraded JG M4 S-System, includes higher torque motor, higher precision metal gear box, M120 spring, integrated barrel for increased shooting accuracy, and initial starting speed. This AEG feels heavy on hand; most of the easy wear parts are made with metal.  The front Rail RIS System handguard made with full metal, as is the front and rear sight It shoots 410-420 fps with 0.2gbb, 500+ fps with 0.12g. This JG M4-S-System featuring a new design 2009 metal gear box, M120 spring, 300 rounds high capacity magazine, and includes battery and charger.

• A&K SR25 Sniper Rifle Full Metal Airsoft Gun-from A&K’s famous SR25 URX Special Forces edition. The SR-25 has a full metal body receiver, full metal RIS handguard; also with a functional charging handle to simulate a realistic feeling. This Airsoft guns features a reinforced metal gear box shooting 400+ fps out of the box. It has a nice finish on body with reinforced gear for higher durability and performance. V2 metal gear box, very easy to upgrade for higher performance. Large high capacity Magazine holds 400+ rounds.

• JG M733-F Metal Gear Box Airsoft Electric Gun-with newly enhanced design, now with M120 Spring, enhanced gear box, turbo motor, and one piece barrel for stronger performance, higher rate of fire, and better accuracy. This JG M733F Metal Gear Box Airsoft Electric Gun (Version 2) from JG are the finest made Electric Rifles by JG.  The new Version 2 rifles has installed M120 spring, making the FPS on this gun well over 400-420 with 0.2g bb. It also comes with a full metal side folding stock. The orange tip is installed.

• DE M50 Airsoft Sniper Gun Bolt Action Rifle-the new Sniper Rifle is a replica of M50, a US marine corp sniper rifle. This M50 has a reinforced spring pushing out 400+ fps with 0.2g bb. It has attachments for optional scope and bi-pod, with a high power bolt action and a long metal barrel, this gun will accurately shoot great distances. It has a metal barrel and steel bolt. Built in 20mm Scope mount rail (Ready for any scope installation in seconds). Adjustable hopup. Bipod ready (Ready for a bipod to be installed in minutes). Bi-Pod not included.

Even at retail, there is a wide range of prices, so if you want a cheap airsoft gun with 400 fps, start with the least expensive type and then try to find it at its cheapest price.