CTM Tactical AAP-01/C Stainless Steel Hammer Set V2, Silver/Rainbow

The CTM Tactical Stainless Steel Hammer Set V2 is a 15-piece replacement set for the hammer group in the Action Army AAP-01 and AAP-01C. The set replaces the hammer, sear, firing pin, rotor, fire pin lock and auto sear with CNC-machined stainless steel parts and comes with a fire pin lock spring plus new body, hammer housing and trigger pins. In this variant the hammer parts are silver, while the pins have a rainbow finish.

The hammer group is the heart of the AAP-01's firing cycle, and the original zinc alloy parts wear over time – especially when the pistol runs full auto or has been upgraded with stronger springs. V2 is CTM's second generation of the set: every part has been redesigned from scratch, and each part is machined with at least 13 different CNC tools for tighter tolerances. According to CTM, this solves the uneven full auto and occasional semi-auto faults the first generation could have.

What you get with the V2 set

The key differences from the original hammer group:

• CNC-machined stainless steel: Harder than the original cast parts, so the contact surfaces between hammer, sear and auto sear keep their shape longer and give a more consistent trigger.
• Nickel-plated surface: Protects against rust over time. A slight yellowish tone in the plating is normal, according to the manufacturer.
• Redesigned V2 geometry: Aimed at reliable function in both semi and full auto – the point where worn original parts most often start causing problems.
• Complete with pins and spring: Body pins (3), hammer housing pins (3) and trigger pins (2) are included, so you don't reuse old, worn pins in a new hammer group.
• Just 30 g in total: Despite the steel construction, the whole set weighs 30 g. The hammer housing is not included – reuse the original, or add CTM's stainless steel hammer housing.

Maintenance and safety

• Remove the magazine and check that the pistol is empty before disassembly.
• CTM stresses that the contact surfaces between the hammer parts and hammer housing must be thoroughly lubricated on fitting and regularly afterwards – insufficient lubrication causes friction and irregular cycling.
• Use a lubricant intended for airsoft, and check the hammer group for wear during routine cleaning.
• Fitting the hammer group requires experience and possibly fine-tuning – our workshop in Aulum, Denmark can fit the set for you.