SS Airsoft Custom HPA Echo 1 Knight's Armament HPA SR-16 CQB Mod2-Tan w/Polar Star Jack

• SS AIRSOFT Custom Built HPA airsoft rifle. We build some of the best custom HPA airsoft replicas you will find on the market. All weapons are test fired, tuned and adjusted to work perfectly right out of the box.

Knight's Armament Airsoft Nylon Fiber SR-16E3 CQB Mod2 in Tan Airsoft AEG by Echo1 Model Number: JP-99

Knight's Armament SR-16E3 Mod.2 CQB Features a polymer body, keymod rail system and flip up front and rear sights.  Shorter version than the carbine Knight's. Uses all M4 parts and accessories.

The CQB has Full Knight's Armament trademarks. Features a polymer body, full metal keymod rail system and flip up front and rear sights.  Clocking in around 370 FPS w/.20g BBs.

Full metal keymod and standard rail system from Knights Flip-up metal Knights style sights

SS Airsoft Custom HPA Knight's Armament w/ PolarStar Jack includes:

• Knight's Armament Echo1 Model Number: JP-99
• REINFORCED COMPACT POLYMER PICATINNY ANGLED FOREGRIP (OD, BLACK & TAN)
• PTS UNITY TACTICAL FAS MICRO RISER MOUNT
• AN/PEQ-15 L.E.D. White Light + Laser
• PolarStar JACK Electro-Pneumatic Gearbox Conversion Kit V2 M4
• Lancer Tactical 1x25 2 MOA Red/Green Dot Sight w/ QD Riser Mount
• Madbull Daniel Defense MK12 12" M4A1 RIS II Airsoft CNC Aluminum RIS
• AceTech Brighter-C Tracer Unit
• Airsoft Ladder Rail Panel for 20mm Rail Set of 6
• Air Rig Mini Quick Disconnect Plug Gun Side | 6mm

HPA Description

The JACK™ system was designed to answer the demand for an affordable, high performance HPA conversion for AEG's. The system is a drop-in cylinder replacement that is universally compatible with a wide range of gearbox versions that have center-line nozzles.

Similar to its sister product, the F1, it replaces the original gearbox components with a programmable pneumatic system allowing for higher performance and greater reliability over a gear driven system. Although economically priced, JACK™ still retains the same performance and quality you have come to expect from PolarStar products. 

Specifications

• Velocity: 500FPS w/ .20g @ 120psi.
• The Jack allows for easy velocity adjustment. Using a standard V2 as an example, velocity can be adjusted from below 100fps and up to approximately 500fps with a .20g BB. Longer barrels will increase the maximum FPS while shorter barrels will decrease it.
• ROF: 30RPS+
• The maximum cyclic rate of the Jack is affected by several factors, however, 30 rounds per second is a conservative number. Most configurations will exceed this easily.
• Air Efficiency: 1200 shots from 13/3000 @ 1.5J (80PSI w/ .28g)
• The JACK is extremally efficient. The patent pending design of the F1 allows for the most direct air path to the nozzle with minimum dead volume resulting in better flow, faster response and less air used per shot. Using a stock VFC M as a test platform, the JACK was able to fire approximately 1200 rounds for a 13ci/3000psi cylinder before pressure dropped below regulated output.