The new M4A PRO hop-up block is ideal for upgrading your AEG M4 airsoft replica. It features very good build quality and has a precise hop-up adjustment system. In fact, it is designed with a numbered, notched wheel, allowing you, for example, to adjust your trajectory according to the weight of pellets used once you have found your correct setting.
.Furthermore, this hop-up block is dust-tight thanks to vinyl side panels blocking access to the machined holes. There's also a wedging system in line with the nozzle and barrel via 3 O-ring seals and 3 springs at the top, bottom and middle of the block for perfect centring.
The M4A PRO MAXX MODEL hop-up block embeds a ball retention rocker system to retain the bbs when the magazine is removed from the replica. This system automatically releases when a new magazine is inserted for optimal operation.
1 x CNC M4A PRO Hop-Up Chamber for M4 AEG TM / G&G / Krytac Maxx Model
2 x CNC Clear Vinyl Cover
2 x 2.5mm CNC Brass Side Wing
1 x CNC Steel Pivot Pin
1 x CNC Aluminium HopUp Arm
1 x CNC Aluminium Soft Round Nub
1 x CNC Aluminium Soft Flat Nub (4mm)
1 x CNC Aluminium Hard Concave Nub (4mm)
3 x CNC Steel Nub Spring
1 x CNC Steel Spring Guide
1 x Steel Top Compression Spring
1 x Steel Centre Compression Spring
1 x Delrin Locking C-.CNC Clip
1 x CNC Brass Barrel Spacer
1 x Brass Spacer Support Oring Oring
1 x CNC Aluminium Adjusting Knob
1 x CNC Aluminium Inlet Adapter (11mm)
1 x CNC Brass Inlet Spacer