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JDG Hi-Capa CompMag 31 Rounds Competition Magnetic Magazine Performance Version For Marui TM Hi-Capa GBBP Series ( CNC Aluminum )
Price: US$ 72.00
"Competition Edge" Full CNC 6-Series Aluminum Magazine Body
Precision machined from aerospace-grade 6-series aluminum, this magazine body delivers an ideal balance of lightweight handling and structural rigidity, with exceptional corrosion resistance and long-term durability.
Ultra-Lightweight Build (171g)
Weighing in at just 171 grams, it significantly reduces overall gun weight for faster reload transitions and sharper handling — giving you the split-second advantage in high-stakes matches.
Magnetic Quick-Draw System
Embedded with a high-strength 440C stainless steel magnetic plate, fully compatible with magnetic magazine pouches for seamless, drag-free drawing and instant reloads.
Gas Stabilizer Tube Set (Performance Version)
Features an internal multi-length gas stabilizer tube system that optimizes liquid-to-vapor conversion for more consistent output pressure. A 35mm tube is pre-installed, with additional lengths included for fine-tuning based on ambient conditions and personal preference.
R-Edge Smooth Reload Geometry
The top rear edge features a rounded "R" profile that minimizes friction during insertion, ensuring smooth, consistent magazine seating every time.
Competition-Tuned Output Valve
Upgraded with a reinforced stainless steel output valve, precision-calibrated to deliver a stable pressure curve for reliable gas efficiency shot after shot.
Durable Fill Valve (TM-Spec M4.5)
Built with a stainless steel base and an extended brass core for enhanced durability, smooth gas flow, and reduced cooldown effect during rapid filling.
Nylon Reinforced Feed Lips
Molded from high-impact nylon composite, the feed lips resist cracking and deformation, significantly extending the magazine's service life under heavy use.
FKM Gas Route Seal & Dual O-Rings
The gas route seal and internal double O-rings are crafted from FKM fluororubber, offering superior resistance to oil, chemicals, and compression deformation for long-term leak-proof performance.
Dual O-Ring Leak-Proof Design
The dual O-ring internal structure provides a double layer of sealing protection, eliminating the risk of gas leakage and ensuring consistent airtightness.
PVD Vacuum Coating Finish (Performance Version Exclusive)
Finished with Physical Vapor Deposition (PVD) plating, this surface treatment delivers exceptional hardness, abrasion resistance, and a mirror-like polished sheen — combining premium aesthetics with rugged protection.
Full TM Hi-Capa GBB Compatibility
Designed specifically for Tokyo Marui Hi-Capa GBB pistol series — drop-in fit with zero modification required.
Standard Base Plate Compatibility
Accepts all standard TM-spec magazine base plates available on the market, allowing for easy personalization.
Fully Serviceable & Upgradeable
Every component is available as a separate spare part, making maintenance, repair, and performance tuning simple and cost-effective for players who demand total control.


























SCG - SHOOTER COMBAT GEAR