Maxx Model M4P Pro Hop Up Chamber - HPA Polarstar

The newest Maxx M4P Pro HopUp Chamber for HPA PolarStar Engines on standard M4/M16 platforms. The CNC Aluminum Hopup Chamber M4P Pro (with BB Latching System) blue unit is precisely made to improve accuracy and ensure consistent air seal for all HPA PolarStar Engines on standard M4/M16 platforms. 

**The M4P unit is updated for 2022 and replaced the previous older red ME unit.  The M4P includes more precise improvements including accepting more hopup buckings (Maple Leaf is the best fit according to Maxx) and the highest FPS consistency with any hopup aftermarket chamber.  The ME was prone to more jams, which is eliminated with the new M4P unit.

The Hopup Chamber M4P unit has a precision rotary dial design for fine hopup adjustments, also re-engineered the hopup levers and concave nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot. 

The Hopup Chamber M4P unit is designed to accept the nozzle length on M4 HPA Polarstar Engines, and fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs. 
The Hopup Chamber M4P Housing is equipped with a new CNC Delrin Locking C-Clip design to hold barrel tight without wobbling and twisting, and 3 compression springs on top, at bottom and in center of housing to ensure the hopup unit is exactly centered, straight and air tight at all times when adapted to any HPA PolarStar Engine with 11mm inner bores. 
More than that, the Hopup Chamber M4P Pro unit is specially designed with BB Latching System to prevent dropping BBs after removing the magazine. The Latching System can be also manually opened to release BBs from inside hopup chamber by hand. 

***The UV LED Tracer and Electronic Module are optional add-ons (ME Tracer unit) to glow BBs in the dark. Operating Voltage from 7VDC - 15VDC (2-4 cells LiPo, 6-13 cells NiCad). (Sold separately) 

***The Empty Magazine Detection Sensor and Electronic Switch Controller are optional add-ons to stop Motor/HPA firing when the magazine is empty. (Sold separately) 

***Test results: FPS might be increased from 10FPS to 30FPS over stock setup. Please check your FPS! 

	Include
	1 x CNC Aluminum Hopup Chamber M4P Pro (with BB Latching System) unit
	2 x Strong Clear Vinyl Cover
	2 x CNC Brass 2.5mm Side Wing
	1 x CNC Steel Pivot Pin
	1 x Aluminum Hopup Lever
	1 x Aluminum Soft Round Nub
	1 x CNC Aluminum Soft Flat Nub (4mm)
	1 x CNC Aluminum Hard Concave Nub (4mm)
	1 x CNC Steel Spring Guide
	1 x Steel Upper and Center Compression Spring
	1 x CNC Delrin Locking C-Clip
	1 x CNC Brass Barrel Spacer
	1 x Brass Barrel Spacer Holder O-Ring
	1 x CNC Aluminum Rotary Dial Knob
	1 x CNC Aluminum Inlet Adapter (OD 12mm)
	1 x CNC Brass Inlet Spacer
	3 x Steel Compression Spring

	Overall Length: 51.15mm
	Overall Height: 37.75mm
	Hub Outer Diameter (to fit into Gear Box): 11mm
	Hub Outer Diameter (to fit into Outer Barrel): 12mm
	Hub Inner Diameter (to fit Nozzle): max 8mm
	Feeder Outer Diameter (to fit magazine): 8.85mm
	Feeder Length (to fit magazine): 6mm
	Material: Aluminum 6061

	Features
	Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability
	Improved accuracy and ensure consistent air seal for Tokyo Marui (include KRYTAC, except KWA) M4/M16 Standard AEG series
	Precision rotary dial design for fine hopup adjustments
	Re-engineered the hopup levers and concave nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot
	Removable Brass Threaded Slot Pin for setup and maintenance
	Accepted the nozzle length from 21.00mm to 21.25mm
	Fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs
	Equipped with a new CNC Delrin Locking C-Clip design to hold barrel tight without wobbling and twisting
	Equipped with 3 compression springs on top, at bottom and in center of housing to ensure the hopup unit is exactly centered, straight and air tight
	Compatible with any V2 gear boxes with 11mm or 11.5mm bore
	Specially designed with BB Latching System to prevent dropping BBs after removing the magazine
	Manually opened to release BBs from inside hopup chamber by hand
	The UV LED Tracer and Electronic Module to glow BBs in the dark ready!
	The Empty Magazine Detection Sensor to stop Motor/HPA firing ready!

	Weight
	N/A grams

	Usage
	Compatible with HPA PolarStar Engines (M4 Nozzle)

	Requires
	Wearing eye protection is recommended
	Use proper tools for disassembly and reassembly the gear box with great care due to spring tension
	Bearing lubricant oil/grease is recommended for smooth operation

	Instruction
	Instruction Manuals are included