AirRattle are getting to be one of the best "go to" companies when airsoft players are looking for the PolarStar Fusion Engine already installed in some of the most sought after airsoft guns in the market and here they took on the G&P M4A1 and improved on it further... "We had some people requesting for a more advance Polarstar build, so we did just that: AirRattle Custom Polarstar GEN 3 G&P M4A1 w/ R-Hop System. We took a normal G&P M4A1 and installed a new upgraded steel barrel with a R-Hop installation. Everything on the gun has been expertly installed and tested. We are one of the first to provide a pre-installed R-Hop in a custom gun! With the R-Hop installation, we are able provide a considerable increase in range and accuracy.

Features:

• Color: Black
• Operation: Polarstar Engine - High Pressured Air (HPA)
• Fire Selection: Programmable
• Velocity (Approx.): 400 FPS w/ .20g
• Magazine Compatibility: Standard Metal Gearbox M4 / M16 Mags
• Capacity: 130 Rds
• Range (Approx.): 220 +/- Feet
• Ammo: 6mm .20g / .23g / .25g / .28g / .30g / .36g Seamless
• Battery Location: Crane Stock
• Battery Type: 7.4v Small Crane Stock Lipo w/ JST Connector (Not Included)
• Hopup: Yes (Adjustable) (R-Hop Installed)
• Gearbox Type: Polarstar Version 2 GEN 3 Fusion Engine
• Installed Air Nozzle - Blue ~420FPS with 407 mm Barrel
• Manufacturer: Custom Built By Airrattle
• Scale: 1:1 Full Size Replica
• Receiver Material: Metal
• Inner Barrel Length: 407 mm
• Inner Barrel Diameter: 6.02mm
• Upgraded Stainless Steel Inner & Outer Barrel
• Preinstalled R-Hop Kit For Maximum Range and Accuracy
• Preinstalled HS Armory Barrel Lock Down Kit
• Removable Carry Handle
• RIS Top Rail for Optics
• Adjustable Front & Rear Sights
• 5 Positional Adjustable LE Stock
• Adjustable FPS (Using Different P* Air Nozzles)
• Adjustable Rate of Fire (500rpm to 1800rpm)
• Adjustable Fire Controls
• Semi Only & 2 to 9 Round Burst Options
• PSI Operating Range 80 to 120 PSI
• Extremely Consistent Performance
• HPA Driven For Optimal Performance & Durability
• Air Rig & HPA Tank Required (Not Included)
• Professionally Build, Upgraded & Tested

Includes:

• Custom PolarStar G&P M4A1 w/ R-Hop Airsoft Rifle
• 130rd G&P Mid-Cap Airsoft M4 Magazine"