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At a glance
Measured figures
K2C1 extended
Single sourceK2C1 folded
Single sourceK2C1 retracted
Single sourceK2C extended
Single sourceK2C folded
Single sourceK2C retracted
Single sourceK2 extended
Single sourceK2 folded
Single sourceK2: 980 mm (39 in) (extended) 730 mm (29 in) (folded) K2C: 880 mm (35 in) (extended) 790 mm (31 in) (retracted) 630 mm (25 in) (folded) K2C1: 1,014 mm (39.9 in) (extended) 940 mm (37 in) (retracted) 730 mm (29 in) (folded)[source]
Remington Model 870 · Length · Length
Single source26.3 in (670 mm) to 50.5 in (1,280 mm)[source]Remington Model 870 · Length
K2C1 w/o magazine
Single sourceK2C w/o magazine
Single sourceK2 w/o magazine
Single sourceK2: 3.4 kg (7.5 lb) (w/o magazine) K2C: 3.3 kg (7.3 lb) (w/o magazine) K2C1: 3.6 kg (7.9 lb) (w/o magazine)[source]
Remington Model 870 · Mass · Mass
Single source7.0 lb (3.2 kg) to 8.0 lb (3.6 kg)[source]Remington Model 870 · Mass
K2C
Single sourceK2 & K2C1
Single sourceK2 & K2C1: 465 mm (18.3 in) K2C: 310 mm (12 in)[source]
Remington 870 · 410 Turkey TSS · Barrel length
Single sourceRemington 870 · Fieldmaster · 28, 26, 21, 18.75, 26 and 711, 660, 533, 476, 660 and
Single sourceRemington 870 · Fieldmaster · Barrel length
Single sourceRemington 870 · FieldMaster Deer · Barrel length
Single sourceRemington 870 · Fieldmaster Fully Rifled Cantilever · Barrel length
Single sourceRemington 870 · Fieldmaster Synthetic · 28, 26, 21, 21 and 710, 660, 530, 530 and
Single sourceRemington 870 · Fieldmaster Synthetic · Barrel length
Single sourceRemington 870 · Special Purpose Marine Magnum · Barrel length
Single sourceRemington 870 · SPS Super Mag Turkey Predator · Barrel length
Single sourceRemington 870 · SPS Superslug · Barrel length
Single sourceRemington 870 · Super Magnum Flyaway · Barrel length
Single sourceRemington 870 · Super Magnum Turkey/Waterfowl Camo · Barrel length
Single sourceRemington 870 · Turkey Camo · Barrel length
Single sourceRemington 870 · Wingmaster · Barrel length
Single sourceRemington Model 870 · Barrel length · Barrel length
Single source14 in (360 mm) to 30 in (760 mm)[source]Remington Model 870 · Barrel length
20 in (510 mm)[source]Remington 870 · FieldMaster Deer
25 in (640 mm)[source]Remington 870 · 410 Turkey TSS
21 in (530 mm)[source]Remington 870 · Turkey Camo
25 + 1 ⁄ 2 in (650 mm)[source]Remington 870 · SPS Superslug
28, 26, 21, 18.75, 26 and 20 in (711, 660, 533, 476, 660 and 508 mm)[source]Remington 870 · Fieldmaster
28, 26, 21, 21 and 20 in (710, 660, 530, 530 and 510 mm)[source]Remington 870 · Fieldmaster Synthetic
18 + 1 ⁄ 2 in (470 mm)[source]Remington 870 · Special Purpose Marine Magnum
20 in (510 mm)[source]Remington 870 · SPS Super Mag Turkey Predator
28 in (710 mm)[source]Remington 870 · Super Magnum Flyaway
26 in (660 mm)[source]Remington 870 · Super Magnum Turkey/Waterfowl Camo
25–28 in (640–710 mm)[source]Remington 870 · Wingmaster
20 in (510 mm)[source]Remington 870 · Fieldmaster Fully Rifled Cantilever
Rate of fire
Single source700–900 rounds/min[source]
K100
Single sourceK101
Single sourceK200 & KM433 grenades
Single sourceKM193
Single source915 m/s (3,000 ft/s) (K100) 875 m/s (2,870 ft/s) (K101) 964 m/s (3,160 ft/s) (KM193) 75.3 m/s (247 ft/s) (K200 & KM433 grenades)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Configuration
| Specification | Daewoo Precision Industries K2 | Remington Model 870 |
|---|---|---|
| Type | Assault rifle (K2 & K2C1) Carbine (K2C)[source] | Pump-action shotgun[source]Remington Model 870 · Type |
| Place of origin | South Korea[source] | United States[source]Remington Model 870 · Place of origin |
| In service | 1985–present[source] | 1950–present[source]Remington Model 870 · In service |
| Used by | See Users[source] | See Users[source]Remington Model 870 · Used by |
| Wars | Gulf War United Nations Operation in Somalia II War in Afghanistan Iraq War Conflict in the Niger Delta 2006 Fijian coup d'état Iraqi insurgency War in Iraq Syrian Civil War[source] | Vietnam War Rhodesian Bush War Lebanese Civil War War in Afghanistan Iraq War[source]Remington Model 870 · Wars |
| Designer | Agency for Defense Development Daewoo Precision Industries[source] | L.Ray Crittendon, Phillip Haskell, Ellis Hailston, G.E. Pinckney[source]Remington Model 870 · Designer |
| Designed | 1972–1983[source] | 1950[source]Remington Model 870 · Designed |
| Manufacturer | Daewoo Precision Industries (1982–1999) Daewoo Telecom (1999–2002) Daewoo Precision (2002–2006) S&T Daewoo (2006–2012) S&T Motiv (2012–2021) SNT Motiv (2021–present) Dasan Machineries (2016–present)[source] | Remington Arms[source]Remington Model 870 · Manufacturer |
| Unit cost | US $727.00[source] | $ 350[source]Remington Model 870 · Unit cost |
| Produced | 1982–present[source] | 1951–present[source]Remington Model 870 · Produced |
| Variants | See Variants[source] | See Variants[source]Remington Model 870 · Variants |
| Cartridge | 5.56×45mm NATO .223 Remington[source] | 12 gauge , 16 gauge , 20 gauge , 28 gauge , or .410 bore[source]Remington Model 870 · Cartridge 12-gauge[source]Remington 870 · FieldMaster Deer .410-bore[source]Remington 870 · 410 Turkey TSS 12-gauge[source]Remington 870 · Turkey Camo 12-gauge[source]Remington 870 · SPS Superslug 12-gauge, 20-gauge[source]Remington 870 · Fieldmaster 12-gauge, 20-gauge[source]Remington 870 · Fieldmaster Synthetic 12-gauge[source]Remington 870 · Special Purpose Marine Magnum 12-gauge ( 2 + 3 ⁄ 4 ", 3" and 3 + 1 ⁄ 2 ")[source]Remington 870 · SPS Super Mag Turkey Predator 12-gauge ( 2 + 3 ⁄ 4 ", 3" and 3 + 1 ⁄ 2 ")[source]Remington 870 · Super Magnum Flyaway 12-gauge ( 2 + 3 ⁄ 4 ", 3" and 3 + 1 ⁄ 2 ")[source]Remington 870 · Super Magnum Turkey/Waterfowl Camo 12-gauge ( 2 + 3 ⁄ 4 " and 3"), 20-gauge, and .410-bore[source]Remington 870 · Wingmaster 12-gauge[source]Remington 870 · Fieldmaster Fully Rifled Cantilever |
| Action | Gas operated , Rotating bolt (long-stroke piston)[source] | Pump-action[source]Remington Model 870 · Action |
| Feed system | Various STANAG Magazines .[source] | 3+1, 4+1, 5+1, 6+1, or 7+1 round internal tube magazine , or an external 6+1 box magazine[source]Remington Model 870 · Feed system |
| Sights | Iron sights[source] | Bead, twin bead, adjustable open sights, or ghost ring (all iron sights ). Also cantilever and receiver-mounts for scopes[source]Remington Model 870 · Sights |
| Source measurement | Daewoo Precision Industries K2 assault rifle is the service rifle of the South Korean military . It was developed by the South Korean Agency for Defense Development and manufactured by SNT Motiv (formerly Daewoo Precision Industries) and Dasan Machineries (since 2016). Shoulder-fired and gas-operated , the K2 is capable of firing both 5.56×45mm NATO and .223 Remington ammunition; however, using .223 Remington is only recommended for practicing for short distance.[source]Daewoo Precision Industries K2 · Lead; only the objects and conditions stated in this passage An indigenous rifle program started in 1972. Initial requirements were for prototypes to be chambered in 7.62×51mm NATO as it was the only standardized ammunition for the Western Bloc . Prototypes XB-1 through XB-5 were akin to AR-15 -series rifles with some exterior changes; designers attempted to use as many M16 components as possible to save time and money, such as the direct gas impingement operation, sights and handguards. In 1975, the XB-6 prototype with long-stroke gas piston was created, and converted into 5.56×45mm NATO chambered XB-7 in 1977.[source]Daewoo Precision Industries K2 · Development; only the objects and conditions stated in this passage The K2 and K1A had become outdated for international markets after 2000; in addition to lack of ability to add accessories, the K1A had become too large, underpowered and un-ergonomic as a personal defense weapon or special operation carbine and the K2 was too long. In 2012, S&T Motiv introduced the K2C, or K2 Carbine. It has a shortened 310 mm (12 in) barrel with adjusted gas piston, upper receiver/handguard Picatinny rail , and right side-folding M4 -style retractable stock; it weighs 3.3 kg (7.3 lb), is 880 mm (35 in) long with stock extended and 630 mm (25 in) with stock folded. In 2013, a new tan-painted K2C with Magpul CTR stock and detachable rear sight was unveiled, but not actually produced. In 2017, The New K2C-1/2 variants with a foldable front sight and ambidextrous selector switches were unveiled. In 2018, the new K2C-1 variant was renamed K2C CQB ( Close-quarters battle ).[source]Daewoo Precision Industries K2 · Development / K2C; only the objects and conditions stated in this passage S&T Motiv developed the K2A to enhance its domestic appeal, which retained the full-length K2's features (including bayonet lug) and utilized the upgrades of K2C, such as the Picatinny rail on the upper receiver and handguard, as well as an Colt M4-style collapsible stock. It is slightly heavier than the original model, partly due to the screw attachment method of its rail, weighing 3.6 kg (7.9 lb), while the original K2 weighed 3.4 kg (7.5 lb). Afterward, the K2A was renamed to K2C1. The "C" in the name represented that only the exterior was modified, without any enhancements made to its performance, in accordance with the Korean Defense Specifications (KDS). Subsequently, the K2C1 was selected by the ROK forces as their standard weapon. The K2C1 underwent various changes compared to the K2A, which included an extended handguard rail with optional lower and side Picatinny rail sections, a flattop upper receiver featuring a detachable rear backup sight, and a new Magpul CTR-like collapsible stock. As of 2016, approximately 200,000 K2C1s were in active service with frontline troops.[source]Daewoo Precision Industries K2 · Development / K2C1; only the objects and conditions stated in this passage Six different prototypes were made during the XB development. Of the 6 designs, the XB6 was selected. Some parts of the XB6 resembled the FN FNC such as the suppressor and sights. Further development of the XB6 evolved into the XB7 and finally the XB7C, also known as the XK2. Externally similar in appearance to the AR18 , the K2 uses polymer for the forearm, pistol-grip and side-foldable buttstock. The fire control system and bolt carrier group are derived from the American M16 rifle. The gas operating system is derived from the Russian AKM rifle. The K2 uses the same magazine as the M16. The barrel rifling has 6 grooves, 185 mm (1-in-7.3) right hand twist. The K2 has 3 selective firing modes: semi-auto, 3-round burst, and full automatic.[source]Daewoo Precision Industries K2 · Design; only the objects and conditions stated in this passage The K2 can be equipped with the DPI K201, an under-barrel 40×46mm single shot grenade launcher patterned after the American M203 . The Republic of Korea Armed Forces originally planned to replace the entire K2 with new S&T Daewoo K11 dual-barrel air-burst weapon. However, high cost and skepticism over the effective firepower of the 20mm grenade led to the decision to provide 2 K11s to each squad, keeping 2 grenadiers as well. Consequently, the standard 9-person infantry squad of the Republic of Korea Armed Forces is currently equipped with 2 K2 rifles, 2 K2 rifles with K201 grenade launcher, 2 K11 DAWs, 1 K3 light machine gun, and the rest with either K1 or K2.[source]Daewoo Precision Industries K2 · Design; only the objects and conditions stated in this passage When personnel from the South Korean army special command were invited to see the XB-series prototypes, they requested the development of a new submachine gun to quickly replace a series of different weapons in their use. With no time to develop a new weapon, ADD made one based on the XB rifle prototypes called XB-S (short). It used a direct impingement gas tube rather than a piston to achieve the required short length, which was faster to make since they had short-barrel CAR-15 designs to work off of and no time to redesign a new short gas piston. The barrel used 1:12 inch rifling to fire M193 rounds, as during its development there were no plans to adopt SS109 ammunition in the South Korean army. The shortened design was adopted as the K1A in 1981 and issued to special forces, commanders, radio operators and others who needed a short SMG-like weapon.[source]Daewoo Precision Industries K2 · Design / K1 and K2 weapons systems; only the objects and conditions stated in this passage While the K1A is commonly regarded as an shorter version of the K2, the K1 is a separate weapon altogether. The primary differences between the two weapons include: development time and intent (the K1 took less time to develop and entered service sooner than the K2, and despite being technically a carbine-length rifle was designated as a submachine gun because it was intended to replace the M3 Grease Gun ; while the K2 was developed from the start as a service rifle); rifling (K1: 1-in-12 twist; K2: 1-in-7.3 twist); and gas system (the K1 uses a direct impingement gas system, while the K2 uses a long stroke gas piston system). In addition, some parts are not interchangeable between the two weapons even though they can use the same cartridge (KM193 (.223 Remington) 5.56 caliber; the K2 can also utilize the K100 (SS109) 5.56 caliber round).[source]Daewoo Precision Industries K2 · Design / K1 and K2 weapons systems; only the objects and conditions stated in this passage K2/AR-100: Semi-automatic 5.56×45mm NATO version for US civilian market[source]Daewoo Precision Industries K2 · Variants / K2; only the objects and conditions stated in this passage DR-100/DR-200: Semi-automatic 5.56×45mm NATO version for US civilian market post 1989 import ban of non "sport" foreign semi-automatic rifles . Primarily difference of a thumb-hole stock in place of the original folding stock.[source]Daewoo Precision Industries K2 · Variants / K2; only the objects and conditions stated in this passage DR-300: Semi-automatic 7.62×39mm version for civilian market.[source]Daewoo Precision Industries K2 · Variants / K2; only the objects and conditions stated in this passage K2C (C=" Carbine "): Carbine version of K2 rifle with Picatinny rail, M4-type buttstock, barrel reduced to 310 mm (12 in). Exports started in 2012.[source]Daewoo Precision Industries K2 · Variants / K2; only the objects and conditions stated in this passage K2C CQB: A manufacturer-proposed variant of K2C for close quarters combat operations, which was first unveiled by the name "The New K2C-1" in the ADEX 2017, and later renamed as "K2C CQB" in the DX KOREA 2018. It has a 310 mm (12 in) barrel and has a firing range up to 500 meters with a Colt SCW-type buttstock, flip up sights, a horizontally modified magazine well angle, integrated picatinny rails and ambidextrous selector switches.[source]Daewoo Precision Industries K2 · Variants / K2; only the objects and conditions stated in this passage (C="Exterior design changed without performance improvements", by the South Korean Defense Specification ) : New variant featuring a quad accessory rail, full-length 1913 Picatinny optics rail, an AR-15-style six position collapsing and a Magpul-based foldable stock. Comes in two barrel lengths, 305 mm (12 in) and 465 mm (18.3 in). It was officially sent into production in March 2016 with first deliveries in June 2016.[source]Daewoo Precision Industries K2 · Variants / K2C1; only the objects and conditions stated in this passage S&T Daewoo (now S&T Motiv) proposed the XK8 , a 5.56×45mm NATO bullpup version of the K2 in early 2000. After a series of field tests, the XK8 was rejected by the South Korean military and was never mass-produced.[source]Daewoo Precision Industries K2 · Replacement versus upgrades; only the objects and conditions stated in this passage The development of the S&T Daewoo K11 dual-barrel air-burst weapon, which uses 5.56×45mm NATO and 20×30mm air-burst grenade, prompted the South Korean military to plan for the replacements of all K2 rifles in service with the K11, making K11 the standard service rifle for the armed forces. However, due to the K11's extremely high cost and weight for a standard rifle, the armed forces scrapped its original plan and decided to provide 2 K11 per squad in order to increase firepower. The K11 project was subsequently cancelled and as a result, the K2 was retained as the standard service rifle.[source]Daewoo Precision Industries K2 · Replacement versus upgrades; only the objects and conditions stated in this passage | — |
| No. built | — | 11,000,000+[source]Remington Model 870 · No. built |
| Barrel type | — | Fully rifled[source]Remington 870 · FieldMaster Deer Vent Rib, Rem Choke[source]Remington 870 · 410 Turkey TSS Vent Rib, Rem Choke[source]Remington 870 · Turkey Camo Fully rifled extra heavy (fluted)[source]Remington 870 · SPS Superslug Vent rib Rem Choke and fully rifled[source]Remington 870 · Fieldmaster Vent rib Rem Choke and fully rifled[source]Remington 870 · Fieldmaster Synthetic Cylinder choke[source]Remington 870 · Special Purpose Marine Magnum Rem Choke[source]Remington 870 · SPS Super Mag Turkey Predator Vent rib, Rem Choke[source]Remington 870 · Super Magnum Flyaway Vent rib, Rem Choke[source]Remington 870 · Super Magnum Turkey/Waterfowl Camo Vent Rib, Rem Choke[source]Remington 870 · Wingmaster Fully rifled[source]Remington 870 · Fieldmaster Fully Rifled Cantilever |
| Reported operators |
| — |