MP510 Submachine Gun

MP510A3 Submachine Gun
Type	Submachine gun
Place of origin	Etoile Arcture

Service history
In service	2005 - present
Used by	See Users

Production history
Designer	Sequoia Weaponworks
Designed	1999-2003
Manufacturer	Sequoia Weaponworks DeTal-Stevens (under license)
Unit cost	US$500
Number built	A fair few I guess
Variants	MP510A3SF MP510A3LE

Specifications
Weight	2.2 kg empty, 3.47 kg loaded
Length	675 mm w/ stock extended 442.5 mm w/ stock folded
Barrel length	210 mm
Cartridge	9×19 mm Parabellum 9×20 mm 'Kor' .40 S&W (10×21 mm) 10mm Auto (10×25 mm)
Action	gas-actuated delayed blowback
Rate of fire	800-900 rounds/min cyclic
Muzzle velocity	? m/s
Effective firing range	100 m
Maximum firing range	150 m
Feed system	30-round box mag (9 mm Para, .40 S&W), 10- or 25-round box mag (10 mm Auto)
Sights	rotary drum type rear, hooded post front

The MP510A3 Submachine Gun (export designation: Maschinenpistole Modell MP510 A3 or Pistolet-Mitrailleur modèle 510 F3 (PM Mle 510 F3) is a gas-retarded, blowback operated, selective fired submachine gun firing from the open bolt position. It is in part based on the design concept of the G500 Modular Weapon System of which it shares a small degree of parts commonality and manual of arms, differing largely in the type of operating system and feed mechanism used. The MP510A3 boasts high accuracy and a close pattern of single shot and automatic fire. Through precisely machined and self-cleaning parts the system is highly reliable, and the non-moving barrel combined with a straight line recoil path and solid weight has the effect to significantly reduce felt recoil so increasing accuracy on the first shot and controllability thereafter. The weapon is fully able to fire all types of ammunition including supersonic and subsonic loads (with a silencer), high impulse +P cartridges and frangible training rounds.

Description

The upper and lower receiver of the MP510A3 partly resembles the G500 series, and in particular the G501KA3 carbine in shortened form. Both the upper and lower receiver are constructed from shock, temperature and corrosion resistant polyetherimide polymer moulds reinforced by aluminium alloy inserts and secured using tool steel cross-bolts. The eight inch barrel is cold hammer forged from a solid steel blank and features a hardened chrome-plated bore, chamber, bolt and gas system for maximum corrosion resistance and durability. The barrel has polygonal rifling with a twist ratio of 1 turn in 16 inches, and has a quick mount on the muzzle for attaching a snap-on aluminium sound/flash compensator (e.g. Knight's Armament QDSS-NT4).
The upper receiver contains the operating system, a right/left swappable ejection port with spring-loaded dust covers, T-handle cocking lever and side-folding skeletonized polymer buttstock using a positive locking action. The lower receiver includes the magazine well (flared to assist quick magazine changes) and magazine catch, bolt catch, pistol grip and moulded trigger guard with ambidextrous safety/selector levers. Polylithic accessory rails are moulded directly on the receiver, with Vltor KeyMod side rails/ventilation holes and a full-length MIL-STD-1913 Picatinny top rail and three half-length fore-end rail for attaching a variety tactical accessories including sights, tactical lights, underslung grenade launcher or laser dazzler, and vertical grips. Fixed sights consist of a HK-style rotary diopter rear sight and front hooded post with Tritium luminous dots for night shooting.
Internally the MP510A3 consists of a barrel and a gas cylinder fixed to the frame, a hammer-type internal firing mechanism based on the G500 series, but departing from a gas operated rotating bolt system by having a gas-actuated delayed blowback operating system with a telescoped bolt that wraps around the barrel in the forward position. This functions by venting a portion of the propellant gases generated during firing from the barrel back into the breech via a ported gas cylinder above the barrel that delays the rearward movement of the bolt, which is never locked. The weapon operates in simple blowback mode until the point the cartridge crosses the opening of the gas cylinder, at which point a self-centering piston closes off the port. The mechanical simplicty of the design allows the weapon to fire all types of ammunition including subsonic and supersonic loads and high loading +P cartridges with low felt recoil.
Operating controls are identical to those found on any G500 series rifle allowing for easy familiarisation for training conversion. These feature a three-round burst trigger group and a firing pin block to prevent accidental discharge if dropped. The charging handle is a AR15-style T-shaped handle providing ambidextrous operation. The weapon utilises a double column straight polymer magazine compatible with the Heckler & Koch UMP submachine gun, and features a translucent witness window that provides visual indication of ammunition remaining. On emptying a magazine a bolt hold-open (BHO) device holds the bolt and firing pin back for added safety, and engages with the follower of a magazine allowing smoother reloads.

Variants

MP510A3SF

Special Forces (SF) model chambered in .40 S&W with aftermarket accessories including a Knight's Armament QDSS NT-4 compensator, Meprolight Mepro 21 reflex sight and Istec ISL 202 underslung 40 mm grenade launcher.

MP510A3LE

Law Enforcement (LE) model chambered in 10 mm Auto with aftermarket accessories including Meprolight Mepro 21 reflex sight and Thales GLOW MK 3 (Green Light Optical Warner) or LAIX Arms LA-136 Cyclops Laser Dazzler on bottom rail.

Users

Etoile Arcture

• Etoile Arcture Special Forces

• Etoile Arcture Gendarmerie Force

• Police Service of Etoile Arcture

• Etoile Arcture Diplomatic Security Agency

Arcturia

• Forces Spéciales

• Corps des Marine

• Gendarmerie Nationale

• Sécurité intérieure

Zinaire

• Zinarian Army

MesoAmerican cultures

• Confederacy Army

Astograth

• Astograthian Army

• Astograthian Special Forces

Rocky canada

• Rocky Canadian Army

San Rosito

• Ejército de San Rosito

• Guardacostas San Rosito

• Policía Federales

Slacaria

• Slacarian Special Forces

Walabam

• Imperial Police Command

Aquilara

• Aquilaran Army

The Great state of Joseon

• Royal Joseon Army Special Forces - used by 707th Special Missions Group

• Royal Guard

Korrodos

• Imperial Army

• Imperial Navy

• Imperial Marine Korps

• Imperial Aeromarines

• Joint Special Forces

• United Korrodosian Defense Force

Independent Republic of Boldonia

• Parmilo-Palm County Police Department - used by Special Assault Team

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Specifications

• Cartridge: 9×19 mm Parabellum, 9×20 mm 'Kor', .40 S&W (10×21 mm) or 10mm Auto (10×25 mm)

• Action: gas-actuated delayed blowback

• Locking: telescoped bolt

• Weight: 2.2 kg empty, 3.47 kg loaded

• Overall length: 675 mm w/ stock extended, 442.5 mm w/ stock folded

• Barrel length: 210 mm

• Muzzle device: ?

• Feed type: 30-round polymer box magazines (9 mm Para, .40 S&W), 10- or 25-round polymer box magazines (10 mm Auto)

• Sights: rotary drum type rear, hooded post front + aftermarket reflex sight, red dot sight or day/night optics

• Muzzle velocity: ? m/s

• Effective range:

  • 100 m vs point target

  • 150 m vs area target

• Fire control: drop-in replaceable trigger group, ambidextrous selector levers

• Rate of fire: 45-100 rpm practical, 650-700 rpm cyclic

• Trigger pull: single-stage Match non-adjustable, 29.35 N pull

• Unit replacement cost: US$500

Service weapons of Etoile Arcture
Handguns	P280 Namtar Compact Pistol - P360 Azrael Combat Pistol - P1000 Thanatos Service Pistol
Rifles	GR25 Alpha Modular Combat Rifle - XGR99 Multi-Adaptive Combat Rifle - G300 Dreamtaker Heavyweight Precision Interdiction Rifle - G430A2 High Precision Sniper Rifle - G499 Equalizer Close Quarters Combat/Entry Rifle - G500 Modular Weapon System (G500, G501K, G502K, G550, SG555) - G500 Lightweight Modular Battle System (G500, G501K, G550)
Shotguns	SA-12 Viper Combat Shotgun - MAG12 MK 4 Punisher Assault Shotgun
Submachine guns	VP90 MK 3 Velociraptor - MP510 Submachine Gun
Machine guns	MG70B Universal Machine Gun - MG75A1 Light Assault Machine Gun - MG76A2 Lightweight Machine Gun - MG78A1 General Purpose Machine Gun - MG90A1 General Purpose Heavy Machine Gun
Grenade launchers	GL18E2 Basilisk Tactical Support Weapon - GMG53A1 Gorgon Squad Support Weapon
Rockets	M89A2 Frelon Light Anti-Structure Weapon - M90A2 Arrowhead Improved Lightweight Attack Weapon - M92 Arblast Improved Multipurpose Attack Weapon
Missiles	FGM-189A Scimitar - FIM-192A Scorpion - FGR-196A Fénix - FGM-198A Vespula - FQM-242A Symphyta
Ordnance	M9A1 Assault Hand Grenade - AH-M16 Offensive/Defensive Hand Grenade System - ABC-M20 Multi-Purpose Hand Grenade System - M123A1 Close Range Ambush Munition - M124A1 Full Width Attack Mine - M184A1 Intelligent Off-Route Mine System