Mp5 and its Variants
https://specialmilitaryforces.blogspot.com/2018/02/mp5-and-its-variants.html
The Heckler & Koch MP5 (from German: Maschinenpistole 5, meaning Submachine gun 5) is a 9mm submachine gun of German design, developed in the 1960s by a team of engineers from the German small arms manufacturer Heckler & Koch GmbH (H&K) of Oberndorf am Neckar. There are over 100 variants of the MP5, including some semi-automatic versions.
The MP5 is one of the most widely used submachine guns in the world, having been adopted by 40 nations and numerous military, law enforcement, intelligence, and security organizations. It is widely used by SWAT teams in North America.
In 1999, Heckler & Koch developed the Heckler & Koch UMP, the MP5's successor;both are available as of 2017.
Variants:-
HK54: The original model that was produced in 1964. The 54 designation is from the Hecker & Koch company's old system that indicates that it is a submachine gun/assault carbine (5-) chambered for the 9×19mm cartridge (-4). It had a charcoal-gray phosphated finish rather than the matte-black finish used on later models and had narrow slotted metal handguards. Its major differences were that it had a longer and heavier bolt carrier than the MP5 and a flip up "ladder"-style rear sight (like the early G3 rifle) rather than the MP5's aperture sight. Its original 15- or 30-round steel magazines were straight rather than curved, had a plastic follower, and were reinforced with ribs (thus their nickname of "waffle"-type magazines).
MP5: A slightly modified version of the HK54 first created in 1966. It has a matte-black phosphated finish instead of the grayish finish. It originally had the narrow checkered metal "Slimline" handguards in the place of the HK54's narrow slotted metal ones. These were later replaced by the thicker "Tropical" handguards. The proprietary Heckler & Koch "claw mount" rails for mounting optical and electronic scopes were added around 1973. The improved 15- and 30-round magazines were adopted in 1977; they were curved, had unribbed sides, and had chromed-steel followers.
MP5A1: No buttstock (endplate/receiver cap in place of buttstock), "SEF" trigger group.
MP5A2: Fixed buttstock, "SEF" trigger group.
MP5SFA2: Fixed buttstock, single-fire (SE) trigger group.
MP5A3: Retractable buttstock,"SEF" trigger group.
MP5SFA3: Semi-automatic carbine version of MP5A3. Retractable buttstock and single-fire (SF) trigger group.
MP5A4: Fixed buttstock, 3-round burst trigger group.
MP5A5: Retractable buttstock, 3-round burst trigger group.
MP5-N: Model developed specifically for the U.S. Navy. Ambidextrous "Navy" trigger group, 3-lug/threaded barrel for attaching a sound suppressor; rubber-padded retractable stock.
MP5F: Model developed specifically for the French military. Rubber-padded retractable stock, ambidextrous sling loops/bolts and internal modifications to handle high-pressure ammunition.
MP5K: Short (kurz) version created in 1976. It has a shortened 4.5 in (114 mm) barrel, shorter trigger group frame, and a vertical foregrip rather than a handguard. There are no MP5KA2 or MP5KA3 models because it does not come with a fixed or retractable stock.
MP5K Prototype: A stockless, cut-down MP5A2 with regular iron sights and an open vertical foregrip. It was created in 1976.
MP5KA1: MP5K with smooth upper surface and small low-profile iron sights; "SEF" trigger group.
MP5KA4: MP5K with regular iron sights; four-position 3-round burst trigger group.
MP5KA5: MP5K with smooth upper surface and small low-profile iron sights; four-position 3-round burst trigger group.
MP5K-N: MP5K with "Navy" trigger group and 3-lug/threaded barrel for mounting suppressors or other muzzle attachments.
MP5K-PDW: Personal Defense Weapon; MP5K-N variant introduced in 1991 for issue to special operations aircraft or vehicle crews. It adds a Choate side-folding stock, 5-inch 3-lug barrel for mounting a quick-detachable Qual-A-Tec suppressor, and an ambidextrous 4-position trigger group with a 3-round burst mode. A shoulder cross-draw or thigh quick-draw holster is available.
MP5SD: An MP5 model with an integrated suppressor (Schalldämpfer) created in 1974.
MP5SD1: No buttstock (endplate/receiver cap in place of buttstock), "SEF" trigger group, integrated suppressor
MP5SD2: Fixed buttstock, "SEF" trigger group, integrated suppressor.
MP5SD3: Retractable buttstock, "SEF" trigger group, integrated suppressor.
MP5SD4: No buttstock (endplate/receiver cap in place of buttstock), 3-round burst trigger group, integrated suppressor.
MP5SD5: Fixed buttstock, 3-round burst trigger group, integrated suppressor.
MP5SD6: Retractable buttstock, 3-round burst trigger group, integrated suppressor.
MP5SD-N1: Fixed buttstock, "Navy" trigger group, KAC stainless steel suppressor.
MP5SD-N2: Retractable buttstock, "Navy" trigger group, KAC stainless steel suppressor.
MP5/10: Chambered in 10mm Auto, available in various stock/trigger group configurations. It was produced from 1992 to 2000.
MP5/40: Chambered in .40 S&W, available in various stock/trigger group configurations. It was produced from 1992 to 2000.
Civilian market versions
HK94: American import model of the MP5 with an exposed 16.54-inch [420mm] barrel and special SF (safe/semi-automatic) trigger group, designed for civilian use. The 94 factory designation code indicates that it is a semi-auto only Sporting Rifle (9-) chambered for the 9x19mm Parabellum cartridge (-4).
A barrel-mounted vertical foregrip and a ventilated barrel shroud were available for the stock HK94. The HK94 was imported from 1983 to 1989, in three different configurations:
The HK94A2 had a fixed stock, an overall length of 34.59 inches [829 mm], and weighed 6.43 lbs. [2.92 kg.]. In 1991, the state of California imported 420 HK-94A2s, mostly for their state Department of Corrections; it was the last batch of HK-94s imported into the United States.
The HK94A3 had a retractable stock, an overall length of 27.58 inches [700 mm] collapsed and 34.05 inches [865 mm] extended and weighed 7.18 lbs. [3.26 kg].
The HK94/SG-1 (Scharfschützengewehr, "sharp-shooting rifle") was designed for short-range sniping in built-up areas like cities or prisons. It proved to be unsuitable for its designed purpose, due to its poor penetration and stopping power[citation needed], and most went to target shooters and collectors. It had a fixed match stock with a rubber buttpad and an adjustable cheekpiece, folding bipod, flash hider, and a 6 × 42mm Leupold VIII Adjustable Objective scope. It had an overall length of 40.39 inches [1026mm] and a weight of 9.25 lbs. [4.2 kg]. Its mean standard retail price (MSRP) in 1986 was US$1,525; this was more than twice what a stock HK94A2 (US$650) or HK94A3 (US$720) cost. Only 50 were imported into the United States; authentic models have serial numbers running in the 43XX range.
As an aftermarket modification, a PSG-1 trigger pack with target pistol grip and match trigger could be added by a gunsmith by changing the ejector and hammer spring. The 6× Leupold scope was calibrated for .223 Remington rounds, so other scopes were often substituted.
SP89: Sportpistole M1989. Semi-automatic only version of the MP5K designed for civilian use. It lacked a vertical foregrip to make it compliant with the National Firearms Act. It was made from 1989 to 1994.
SP5K: First introduced in 2016, the SP5K is an updated version of the SP89. It features a Picatinny rail mounted on the top of the receiver for mounting accessories. As with the SP89, it is semi-automatic only and the forward handguard does not have a vertical foregrip.
Foreign variant copies
T-94 ZSG (Ziviles Sportgewehr, "Civilian Sport Rifle"): Turkish MP5 semi-automatic-only clone manufactured by MKE for the civilian European sport shooting market. The models available are the T-94P (HK94A2), T-94A (MP5A2), T-94K (MP5K), and T-94SD (MP5SD2). The T-94SD comes with a functioning integral silencer. The solid stocks are welded to the lower receiver to prevent the mounting of a retractable stock or receiver cap.
The AT-94 series, designed for the American market, is modified so that full-auto and 90-series trigger packs cannot be fitted.
MP-10: A Filipino submachine gun manufactured by Special Weapons Inc. based on the MP5. The SP-10 is a civilian semi-auto copy.
POF SMG-PK and SMG-PK-1: Pakistan Ordnance Factory copies of the MP5K. The select fire SMG-PK is identical to the MP5KA4. The SMG-PK-1 is similar except it has a short retractable stock.
POF-4 PISTOL: Pakistan Ordnance Factory semi-auto copy of the MP5K.
POF-5 PISTOL: Pakistan Ordnance Factory semi-auto copy of the MP5.POF-5
OFB Animika 9mm: Indian Ordnance Factory copy of MP5.
LDT HSG-94: made by Luxembourg Defence Technology, semi-auto copy of the MP5 LDT HSG-94
LDT HSG-94K: made by Luxembourg Defence Technology, semi-auto copy of the MP5K, sold with a collapsible stock. LDT HSG-94K