Action Army AAP-01 Assassin Ref 18 Rear Sight Screw AAP_18

Screw AAP-01 Rear Sight

The Action Army AAP_18 is a spare part dedicated to the maintenance of the AAP-01 Assassin. This rear sight screw holds the rear sight and nozzle / BBU block in place to ensure stable operation of the GBB breech.

Its specific M3 format avoids mechanical interference with the bolt and respects the replica's original dimensions.

Specifications AAP_18

• Part type: rear sight mounting screw
• Compatibility: Action Army AAP-01 Assassin
• Technical references: Ref 18 / AAP_18
• Dimensions: M3x2.6 to M3x2.8
• Material: steel for enhanced mechanical strength
• Finish: anti-corrosion black oxide
• Recess: hexagon socket compatible with 2 mm Allen key
• Mounting: flush countersunk head limits internal friction
• Packaging: sold individually

Maintenance highlights GBB

A small part essential to the smooth operation of the blowback system.

• Keeping the BBU stable: this AAP-01 blowback unit screw stabilizes the nozzle block and reduces parasitic internal movements. You can maintain a smoother breech cycle and avoid malfunctions due to loosening.
• Action Army original dimensions: the specific M3 format respects the tolerances of the AAP-01 rear sight screw. You can install a suitable part without the risk of blocking the moving breech with a screw that's too long.
• Durable steel construction: Black steel is more resistant to wear and repeated disassembly. This sturdy design ensures long-lasting security for the rear sight.

Advantages AAP-01 Allen screw

Designed for rapid maintenance of your replica.

• Compact countersunk head: the flush head reduces the risk of internal snagging. It also enables clean, discreet mounting on the top of the GBB.
• Simple Allen mounting: The hexagonal recess makes it easy to tighten in confined spaces. With a 2 mm Allen key, installation is quick and easy.
• Threadlocker compatible: You can apply a low threadlocker to limit loosening caused by blowback vibrations. This solution improves durability.

AAP-01 Assassin compatibility

• Action Army AAP-01 Assassin airsoft 6 mm

Screw installation AAP_18

• Difficulty: Easy (5 min)
• Tools required: 2 mm Allen key
• Prerequisites: Minor disassembly
• Resource: Use a low thread locker to limit loosening

Advantages AAP-01 screws

• Compact, strong fastener.
• Precise assembly in original format.
• Durable, unobtrusive black steel.
• Reliable BBU block support.

Easily optimize maintenance of your AAP-01.

Expert opinion rear sight screw

"On GBB platforms like the AAP-01, a simple screw can change the regularity of the cycle. This original Action Army part clearly does the job and avoids the classic worries of a poorly maintained breech. In the airsoft workshop, it's typically the reference we always keep in stock."

Video