17
Dispatch → Account → Military
by 
The Unitary Technocracy of Etoile Arcture.
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118 reads.
GR2020 Fire Arrow
Type | Bullpup assault rifle |
Place of origin |
In service | 2021 - present |
Used by | See Users |
Designer | Sequoia Weaponworks |
Designed | 2020-2021 |
Manufacturer | Sequoia Weaponworks |
Unit cost | US$750 |
Number built | 17,700 |
Mass | 3.06 kg 6¾ lb) unloaded |
Length | 765.5 mm (30⅒ in) |
Barrel length | 546 mm (21½ in) |
Cartridge | 5.56×45 mm NATO |
Action | short-stroke gas piston, rotating bolt |
Rate of fire | 45-60 rounds/min semi-auto |
Effective firing range | 300-400 m vs point target |
Feed system | 30-round STANAG compatible |
Sights | integrated Picatanny rail |
Accesories | integrated Picatinny rail |
GR2020 Fire Arrow with Magpul AFG2 Angled Foregrip and
Model 38 Stonewall Folding Sight
The GR2020 Fire Arrow (Chinese: Huǒjiàn), named after one of the earliest forms of weaponized gunpowder, is a compact, lightweight, air-cooled, magazine-fed, selective fire 5.56 mm/.233 calibre assault rifle. It uses a proprietary gas-actuated piston-driven short-stroke rotating bolt operating system that can be fired in semi-auto (single shots) or full-auto (three-round bursts). It was originally designed by Sequoia Weaponworks in 2020 in response to 
DEF-N-2020-10-01 issued by the Nacrad Ministry of Defence in October 2020 soliciting foreign suppliers for a replacement to the currently in service Type 5 Infantry Rifle. The initial criteria set out in the published notice of interest called for an austere and affordable service weapon without any compromise in quality or performance. It was extensively tested alongside the Type 6 Infantry Rifle developed by Nacrad Defence Industries for the Nacradian Army and evaluated by the Nacrad Ministry of the Interior. It was finally adopted by the Marine Police, the Nacradian equivalent to the Coast Guard and Police Tactical Unit, in December 2021. It was chosen on the basis that its bullpup layout and compact size was well suited for maneuvering around corners, through doorways, and in and out of vehicles.
The bullpup configuration has a compact profile with an inherently accurate long barrel to stabilise ammunition, a centre of gravity located around the pistol grip that assists handling and natural aiming, and a straight-line recoil path into the buttstock that aids controllability through reduced felt recoil. Rugged construction and robust mechanical parts ensure high reliability in the challenging environments and adverse conditions that can be encountered by the Nacradian Armed Forces in the South East Asia and North African theatres of operation. The weapon is of low mechanical complexity supplied in either a left side or right side ejecting version for reasons of simple economical manufacture to keep within the US$750 price ceiling of the original contract.
The GR2020 is configured around four major subcomponent groups for easy maintenance that are secured by two spring-loaded push-button takedown pins for tool-less disassembly:
the lower receiver group consisting of a moulded pistol grip and full-hand trigger guard constructed from impact/crush resistant 43% glass-filled nylon 66 (PA66) resin;
the upper receiver group made from a trapezoid-shaped extrusion of Type III hard-anodized 7075-T6 aircraft grade aluminium alloy containing the stock, STANAG 4179 compliant magazine interface, ejection port with hinged spring-actuated trap-door dust cover, and ventilated handguard that provides thermal protection to the user, with integral flat-top (12 O'clock) and fore-end (6 O'clock) MIL-STD 1913 Picatinny accessory rails;
the barrel group containing the trunion, breech block with a hard chrome-lined bore and chamber and hammer-forged 21½” (546 mm) AISI 4150 chromium-molybdenum-vanadium (CMV) alloy steel free-floating barrel with six right-handed grooves with a 1:9” (228 mm) twist ratio optimised to stabilise STANAG 4172 ball ammunition, and M16-type i.e. 'bird cage' five-port quick-detach (QD) flash hider threaded into the muzzle;
the bolt carrier group containing the extractor and casing ejector, milled from AISI 8620 nickel-chromium-molybdenum low alloy case hardening steel, that rides inside the receiver on dual internal guide rails and locks and unlocks into a barrel extension using seven radial locking lugs to fully enclose the chamber;
the fire control group pinned to the back of the lower receiver containing the hammer, sear and firing pin assemblies connecting to the trigger pack and safety catch by a long transfer bar.
All internal parts are coated in a dry film lubricant for low maintenance and to fully marinize, tropicalise and winterise the weapon.
The gas piston is positioned over the barrel mated to a moving cylinder attached to a gas tube and operating rod assembly. When pulling the trigger the hammer is disengaged from the trigger sear and hits the firing pin to strike the primer and fire a cartridge. As the bullet passes a gas port between the breech face and the muzzle a portion of the expanding propellant gases is transferred by a gas block that diverts it into the piston to use as a source of power to drive the cylinder and operating rod to the rear. This impinges upon the bolt carrier which is cammed into and out of engagement with locking lugs on the barrel extension by a camming pin ridding on a camway on the bolt. This pulls the bolt to the rear to complete the operating cycle of extracting and ejecting the spent cartridge case by passing through the ejection port by the action of a spring-loaded plunger. The kinetic energy of the firing impulse is stored in captive dual return springs that force the bolt forward on the return stroke to strip the topmost cartridge from the magazine and feed, chamber and lock it into the barrel extension. The hammer cannot be released again until breech locking is complete. Upon locking the bolt, with the trigger held to the rear, the bolt carrier trips the automatic sear, firing the weapon. The gas system is able to cycle and fire all types of ball, tracer, dummy and blank ammunition for operational and training use. When the magazine is empty, the magazine follower actuates a bolt hold open (BHO) device to hold the bolt assembly to the rear to allow quick mag changes. Ammunition is fed from steel STANAG-type double column 30-round curved magazines like those used by the Type 5 Infantry Rifle or from aftermarket AR15/M16-style USGI magazines with 30- and 40-round capacities.
The rifle has simple ambidextrous controls that are suitable for use by conscripts and inexperienced troops. A safety/selector is mounted flush with the lower receiver above the pistol grip consisting of a sliding mode select thumb switch with a rear safe position (marked "S" in white) that blocks the trigger, and forward fire position (marked "F" in red) that releases the sear and drops the hammer. The fire control is a two-stage progressive trigger mechanism that selects semi-automatic fire (a single shot) with a squeeze and release of the trigger, and fully-automatic fire (a three-round burst) with a squeeze and firm hold of the trigger. A T-shaped rear operating handle is permanently connected to the bolt carrier functioning like a forward assist to cycle and close the bolt manually and is used to chamber a round and cock the weapon. The ambidextrous magazine release is a push button above the trigger that actuates the spring-loaded detent that retains the magazine in the magazine well.
No conventional sights are provided as any type of diopter iron sight, telescope optic or reflex (red dot) sight can be mounted on the flat-top rail according to tactical doctrine.
The forward handguard can be replaced by a 
Heckler & Koch AG-C/EGLM (Enhanced Grenade Launching Module) firing 40×46 mm low-velocity (LV) grenades including HE-FRAG, HE-DP, smoke, illuminating and various less-lethal (tear gas canister, rubber baton) rounds. It is a single-shot under-barrel grenade launcher, also convertible to a stand-alone configuration, that operates on the high-low propulsion principle. Ammunition is loaded from a left opening swinging breech and it is aimed using an attached folding ladder sight graduated from 50 to 400 metres in 50 m increments to engage point and area targets.
Federal Police Force of Nacrad - used by Marine Police
Slacarian Special Forces
Slacaria
Royal Joseon Army Special Forces Royal Guard Capital Defense Command/Police Department
The Great state of Joseon
- used by 707th Special Missions Group
Ternyiev Metropolitan Police Department
Soveiniesberg
Telegram for purchasing options or place an order through Consortia.ea. Please consider approving this dispatch to increase its visibility.
Cartridge: 5.56×45 mm NATO
Primer: small rifle
Chamber pressure: 430 MPa (62,000 psi)
Muzzle velocity: 940 m/s
Penetration performance: 3 mm (⅛ in) of steel @ 600 m (1,968 ft 6 in), 12 mm (½ in) of steel @ 100 m (328 ft 1 in)
Operation: gas piston, short stroke
Locking: rotary bolt w/ 7 lugs
Magazine interface: STANAG 4179 compatible
Feed type: 30-round, detachable box magazine, double column
Weight: 3.06 kg 6¾ lb) empty, 3.4 kg (7½ lb) loaded
Overall length: 765.5 mm (30⅒ in)
Barrel length: 546 mm (21½ in)
Rifling: 6 grooves, Ø lands, right hand twist, 1 turn in 228 mm (9 in)
Muzzle device: five-port 'birdcage' flash hider
Maximum effective range vs point target: 400 m (1,312 ft 4⅛ in)
Maximum effective range vs area target: 800 m (2,624 ft 8 in)
Accuracy: 2 MOA
Rate of fire: 45-60 rounds/min semi-automatic, 700-900 rounds/min cyclic sustained
Safety/selector: switch, ambidextrous
Trigger pull: 17.79 N + 22.24 N
Modes of fire: safe + semi-auto + full-auto (three-round burst)
Unit replacement cost: US$750
