CBRa4 Naval Spec

Controlled Burst Rifle, Version 4, Naval Specifications
The CBRa4 is a carbine upgrade kit designed by AccuTech Precision. The weapon is a variant of the AR-15 platform of rifles manufactured by Colt in the United States. It has not yet found a nation that has awarded a contract to produce it, but AccuTech Precision's home country, the United Provinces of The Free has acquired a few of the rifles for it's fledgling Free Navy. Unfortunately it was not able to be standardized by the navy due to the extreme cost of manufacturing that many rifles. Thus, so far less than 500 have been built.

The rifle's extreme cost is caused by the incredibly expensive weight saving materials used for construction, and the all-new waterproof recoil mitigation systems that use computers and springs to make muzzle climb drastically easier to control and less strenuous on the wielder's shoulder.

Design
The rifle was designed using an AR-15 style action and has been improved over four iterations before final production. the Lower and Upper receivers were influenced by the American M4A1, but feature some key differences, such as the removal of the Forward Assist in favour of weight reduction. Recoil Mitigation technology has also been installed around the stock adapter for more controllable bursts. This was a necessity due to the fact that the burst fire rate was increased to 950rpm, meaning that the 5.56mm ammunition is traveling in tighter groups than a regular burst-fire AR-15.

New stock components, a foregrip with integrated lights, an AN/PEQ 214 laser sight on top of the rail system, a flash hider, new front iron sights and a filleted magazine well were added to improve ergonomics and controllability over a standard AR-15 and even an M4. Optional attachments for the rail systems include 4X ACOG and 2X OnPoint optics, underslung M320 Grenade Launchers or Masterkey Shotguns and finally, Leaf Sights or Backup Iron Sights for the side-mounted rails. All rail systems come standard with beige rail covers.

The weapon is painted in a Digital Marine pattern by default, but other options include Digital Red, Classic Woodland, Desert, Solid Tan, Digital Autumn or even Arctic Striped.

Options
The CBRa4 comes with a variety of factory options that the customer can pick and choose to suit many different branches and units of their armed forces. Keep in mind every option adds cost to the base $2,500 USD price each.

Common options include: More exotic options include:
 * Removal of Flash Hider in favour of other muzzle attachments like custom Silencers or Brakes ($50)
 * Changing Stock Adapter to accommodate Fixed or Folding Stock of choice ($100)
 * Camouflage changed to suit customer's home environment ($20)
 * Quick-Change Barrel option to remove damaged barrels in the field ($30)
 * Slings of various colour and material such as Leather or Synthetic ($10)
 * Calibre changes to 9mm, 7.62 NATO, .308 Winchester, .45 ACP, 6.8 Remington ($200)
 * Calibre change to customer's choice ($250)
 * Custom furniture to suit buyer's needs ($80)
 * Acceptance of 75 round Helical Magazine ($100)
 * Change Fire Mode to Full Auto, retains 950rpm fire rate and adds heavy duty recoil springs ($300)

Users
United Provinces of The Free
 * Used by the Free Navy in limited quantities (fewer than 500) as of 2015.