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View larger CNC Aluminum Hop-Up Chamber for Tokyo Marui and WE Glock GBB by Maple Leaf.
G17, G18C, G19 and more (including R17, R18C, R19 replicas).
Designed for precise and consistent performance.
Vertical-shaped I-key pressure arm for shooting heavier BBs.
Compatible with GBB inner barrels Maple Leaf 6.02 mm and Crazy Jet.

For more than 25 years, we know what you like about airsoft.
MPLF052
I-Key Pressure Segment for GBB Gas Pistols G-Series Tokyo Marui and WE by Maple Leaf in silver. Made from CNC-machined aluminum for even pressure distribution on the hop-up bucking. Compatible with Tokyo Marui and WE-Tech G-Series GBB pistols (Gen3 and Gen4), including models 17 / R17, 18C / R18C, and 19 / R19.
MPLF053
CNC Adjustment Wheel for TM / WE G-Series Hop-Up Chambers (17 / 18C / 19 and more) by Maple Leaf in gold. Aluminum adjustment wheel offers superior durability and longevity compared to traditional plastic wheels. Deep grooves for precise hop-up tuning. Designed for Maple Leaf hop-up chambers.
MPLF063
Precision Inner Barrel CRAZY JET by Maple Leaf with a diameter of 6.04 mm. Length of 97 mm (Glock 17 / 18C, Hi-Capa 4.3, SSP5 4.3", SIG P226 and other models). Ultimate accuracy thanks to the innovative Crazy Jet technology. Improves performance and grouping of the weapon. Compatible with GBB and GNB pistols of the TM standard (WE, VFC, Novritsch,...
MPLF118-60
MR HOP hop-up rubber by Maple Leaf for extra range with heavier BBs. Shape: Maple R-Hop. Hardness of 60 shore (110-130 m/s). Front C-Clip for improved sealing. Compatible with GBB / VSR inner barrels without a bridge. Suitable for gas rifles and pistols (Hi-Capa, Glock, etc.) and sniper rifles with chambers designed for VSR hop-up rubbers.
: EPES
E441-076
EPeS PTFE sealing tape with a thickness of 0.076 mm is an essential accessory for every airsoft technician. This tape reliably seals threads and prevents air leaks, for example, around the hop-up rubber. Practical packaging with a resealable wheel ensures easy use and storage.
SMVSR60
The new Flamingo VSR/GBB Gen3 (2023) bucking from SniperMechanic with improved contact patch, placement and materials. This bucking will fit to any rifles/pistols that use the VSR/GBB style bucking.
MPLF180-60
Hop-up Bucking AUTOBOT by Maple Leaf for maximum range. Patch shape: diamond. Variant with a hardness of 60 shore (up to 120 m/s). Additional C-Clip for better sealing. Designed for GBB / VSR inner barrels without a bridge. Suitable for gas rifles and pistols (Hi-Capa, Glock, etc.) and sniper rifles with chambers for VSR buckings.
MPLF181-60
Hop-up Bucking DECEPTICONS by Maple Leaf for maximum accuracy. Patch shape: arrow. Yellow variant with a hardness of 60 shore (up to 120 m/s). Additional C-Clip for better sealing. Designed for GBB / VSR inner barrels without a bridge. Suitable for gas rifles and pistols (Hi-Capa, Glock, etc.) and sniper rifles with chambers for VSR buckings.
4UAD002
High-quality 4UANTUM Friction hop-up bucking by 4UAD for GBB / VSR rifles. Redesigned nub for perfect range and accuracy. Capable of hop-up for heavy sniper BBs up to 0.48g. Traditional single-point nub with minimal room for BB misalignment. Accuracy, range, and precision, that’s what it’s all about!
4UAD006
4UANTUM SEAL Silicone Grease for Sealing by 4UAD in a transparent finish. High-viscosity sealing grease. Ideal for sealing repairs and preventing leaks from damaged O-rings. Suitable for electric AEGs, manual, GBB, CO2, and HPA gas guns. Content: 15 ml. Easy application with a pen applicator.
MPLF204-70
Maple Leaf MR 2023 hop-up bucking in 70° shore hardness (blue) is designed for GBB and VSR inner barrels without a bridge. The wide MR contact patch in a R-Hop style provides a much larger contact area with the BBs and allows effective use of heavier ammo. With this upgrade you get longer range and higher accuracy. Updated 2023 version with a C-Clip and a...
Thanks to its precise construction from CNC-machined aluminum, this chamber ensures exceptional durability and longevity. The hop-up pressure is adjusted using a dial ring (not included, the original ring can be used). The pressure is securely fixed in position for stable accuracy. The metal pressure segment distributes contact with the BB evenly across its surface, resulting in greater range and reduced deviation of individual shots. For the best results, it is recommended to use Maple Leaf AUTOBOT and DECEPTICON hop-up buckings.
| Color | Gold |
| Hop-Up chamber material | Metal |