The [[RPK light machine gun#RPK|RPK]] appears as the "RPK" and is immediately unlocked at the start, on reputation level 0. It has a 100-round drum magazine capacity. The weapon comes lightly modified with a pair of small Picatinny rails on each side on the front portion of the barrel, an RPK74-style flash hider (although being explicitly described to be of 7.62x39 caliber), as well as a Romanian AIMS rifle handguard featuring a vertical hand grip.
The [[RPK light machine gun#RPK|RPK]] appears as the "RPK" and is immediately unlocked at the start, on reputation level 0. It has a 100-round drum magazine capacity. The weapon comes lightly modified with a pair of small Picatinny rails on each side on the front portion of the barrel, an elongated RPK74-style flash hider, and a Romanian AIMS rifle handguard featuring a vertical hand grip.
Payday 2 is the sequel to Payday: The Heist. As with the first game, players may join up to three others in a spree of robberies and other heists to earn money. Payday 2 noticeably features many changes from the first game, among other things the new skill tree. Each of the four trees (the Mastermind, Enforcer, Technician, and Ghost) focuses on differing specializations, though unlike the first game do not grant new weapons for level ups (aside from special examples like the portable saw). Weapons are instead unlocked to purchase by leveling up, which now is done with experience points instead of money. Money is used to buy new weapons, modifications, and masks, though it is divided between a player's "Offshore Account" (which comprises 80% of the money they earn in a heist) and spending cash (the other 20%), and only the spending cash can be used to buy weapons and addons.
The following weapons appear in the video game Payday 2
The game operates with the heister moving in with 2 weapons, and 2 weapons only. A primary and a secondary. Primaries consist of assault rifles, shotgun, and marksman rifles. Secondaries consist of pistols, machine pistols, and bizarrely, a few chopped down variants of some shotguns and assault rifles. Players can take ammo from enemies, but not weapons, ala SWAT 4 and other such tactical shooters.
Each weapon has its own customization options, though some like the Glock 17 barely have any and others like the M4A1 may have much more than others. In addition to shared items like suppressors, weapons also have their own sets of unique addons, such as extended magazines or different finishes or grips. Mods can be removed from these weapons for no charge, and the mod in question will not be lost, merely returned to the player's inventory. However, re-adding it will again require money.
In addition to this, owners of the Gage Weapon Pack #1 DLC will be allowed to change the firing mode between fully automatic and semi-automatic on all applicable weapons, and unlock access to special addons that enable locking a weapon permanently in one fire mode. Owners of the Gage Weapon Pack #2 DLC will also have access to the machine guns as well as new knives. Owners of the Gage Mod Courier DLC will also be able to unlock a special set of modifications that are otherwise unobtainable. As a bonus, the pack also comes with extra reticles and colors for all sights, though players without the DLC will still be able to use all the colors and a few of the new reticles
Handguns
Beretta 92FS Centurion
The Beretta 92FS Centurion appears as the "Bernetti 9" and is unlocked at reputation level 6, and has an incorrect 14-round magazine.
Modified Version.
Glock 17
The Glock 17 appears in-game as the "Chimano 88 Pistol". It is the default secondary weapon, and is rather weak though holds a fairly large 17-round magazine. It cannot be customized with anything but suppressors.
Modified Version.
Glock 18C Generation 3
The Glock 18C Generation 3 is unlocked at reputation level 29 and, as in the first game, is known as the "STRYK 18c." It still features a high rate of fire, low power, and low accuracy and comes with a 20-round magazine and tan frame and slide.
Modified Version.
Glock 22C
The Glock 22C appears as a new gun added in the Election Day update (3/20/2014) and is named the "Chimano Custom," with the website render marking it as a .40 S&W model. It has a default magazine of 16 rounds and can be modified in most of the same ways as the Glock 18. It has a unique red front sight and a flared magazine well and an olive drab frame. The Custom becomes a Glock 35 if equipped with the Long Slide modification
IMI Desert Eagle Mark XIX
The IMI Desert Eagle Mark XIX appears under its popular nickname of "Deagle" and is unlocked at reputation level 36. It is exceptionally powerful and holds an incorrect 10-round magazine.
Modified Version.
Heckler & Koch USP Tactical
The Heckler & Koch USP Tactical appears as the "Interceptor .45" and is automatically unlocked for purchase by joining the Payday 2 Official Steam Group. It is decently powerful and holds a 13-round magazine.
Modified Version.
SIG-Sauer P226R
The SIG-Sauer P226R appears as the "Signature .40" and is unlocked for purchase by buying the Gage Weapon Pack #01 DLC. In-game it does the same amount of damage as the Crosskill(Springfield Armory 1911 Lightweight Operator), but most, if not all, of its stats are better compared to the Crosskill.
Modified Versions
Springfield Armory 1911 Lightweight Operator
The Springfield Armory 1911 Lightweight Operator is unlocked at reputation level 2, and is much more customizable than the starting Glock. It is named the "Crosskill" as it was in the first game and has an incorrect 10-round magazine.
Modified Version.
Taurus Raging Bull
The Taurus Raging Bull returns from the first Payday, again known as the "Bronco .44" but now featuring its full-length barrel by default. It holds 6 rounds and is unlocked at reputation level 6, and is massively powerful. As of a recent patch, street cops can use this devastating weapon.
Modified Version.
Walther PPK
The Walther PPK is available for purchase with the Armored Transport DLC and is known as the "Gruber Kurz" pistol. It is fairly weak but easy to conceal and incorrectly holds 14 rounds.
Modified Version.
Submachine Guns
Brügger & Thomet TP9-US
The Brügger & Thomet TP9-US is unlocked at reputation level 19 and is known as the "CMP." It holds 30 rounds in a 20 rounds magazine.
Modified Version.
Carl Gustav M/45
The Carl Gustav M/45 is named the "Swedish K SMG" in game and holds a 40-round magazine, though is inaccurate and carries only 80 total rounds. It is available for purchase to anyone who owns the Armored Transport DLC.
Modified Version.
FN P90 TR
The FN P90 TR appears as the "Kobus 90" and is unlocked at reputation level 36. It has the highest magazine size of any secondary, though only carries two magazines total.
Modified Version.
FN PS90
The FN PS90 is used when the P90 is equipped with the Long Barrel modification.
Modified Version.
Heckler & Koch MP5A4
The Heckler & Koch MP5A4 returns from Payday: The Heist, again known as the "Compact-5" and still in use by some SWAT units. It is unlocked at reputation level 13 and can be changed into various other configurations with modifications. It holds 30 rounds.
Modified Version.
Heckler & Koch MP5A5
The Heckler & Koch MP5A5 is used if the MP5A4 is equipped with the Adjustable Stock modification.
The Heckler & Koch MP5SD6 is used if the MP5A4 is equipped with both The Ninja and the Adjustable Stock
Modified Version.
Heckler & Koch MP5KA4
The Heckler & Koch MP5KA4 is used if the MP5A4 is equipped with the Bare Essentials stock and Sehr Kurze front, though this version has rails instead of the default grip.
Modified Version.
Ingram MAC-10
The Ingram MAC-10 is known as the "Mark 10" and is unlocked at reputation level 2. It has an incorrect magazine size of 40 rounds in a 20 rounds magazine.
Modified Version.
Assault Rifles / Battle Rifles
Bofors Ak 5
The Bofors Ak 5 appears as the "AK5" and is unlocked at reputation level 33, and holds 30 rounds.
Modified Version.
Bofors Ak 5C
The Bofors Ak 5C is used when the AK5 is equipped with a modification.
Modified Version.
Colt M4A1
The Colt M4A1 appears as the "CAR-4" and is unlocked at reputation level 4. Essentially it is an upgrade of the starting Model 733 and features tan flip-up ironsights by default. It is frequently used by law enforcers and holds 30 rounds.
Modified Version.
Colt M16A4
The Colt M16A4 with a short barrel appears as the "AMR-16" and is unlocked at reputation level 39. It is shown as an automatic weapon and incorrectly holds 30 rounds in a 20 rounds magazine and 45 rounds in a 30 rounds magazine, and the real M16A4 fires only in three-round bursts or semi-automatic mode. It can be equipped with an M16A1 handguard with the Blast From The Past modification.
Modified Version.
Colt Model 733
The Colt Model 733, fitted with an A2-style receiver and 6-position stock, is the default primary weapon and appears as the "AMCAR". It is somewhat weak and holds only 20 rounds, and is outclassed in virtually every way by the unlockable rifles. The carry handle is incorrectly removed when adding other aiming sights.
Modified Version.
FN Herstal FAL
The FN FAL was added into the game with the Big Bank DLC.
FN Herstal SCAR-H
The FN SCAR-H STD appears as the "Eagle Heavy" rifle and is available to purchase for owners of the Gage Weapon Pack #1 DLC. It holds 20 rounds and is a powerful weapon.
Heckler & Koch G36C
The Heckler & Koch G36C appears as the "JP36" and is unlocked at reputation level 16. Holds 30 rounds and is a well-rounded weapon.
Modified Version.
Heckler & Koch G36KV
The Heckler & Koch G36KV is used if the G36C is equipped with the Polizei Special modification
Modified Version.
Izhmash AKMS
The Izhmash AKMS appears as the "AK.762" and is unlocked at reputation level 16. Holds 30 rounds and less total ammunition than the AK-74
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Modified Version.
Izhmash AKMSU
A variant on the Izhmash AKMSU is unlocked at reputation level 29 and is named the "Krinkov," the nickname of the AKS-74U. It holds 30 rounds and is a secondary weapon, rather than a primary like the other two Kalashnikov rifles.
Modified Version.
Izhmash AKS-74
The Izhmash AKS-74 is the second primary weapon unlocked, at reputation level 1. It appears simply as the "AK" and holds 30 rounds.
Modified Version.
Olympic Arms K23B Tactical
The Olympic Arms K23B Tactical is named the "Para" and is unlocked at reputation level 19. It comes with a wire collapsible stock as used with the M231 FPW, and a slightly longer handguard that covers the gas block. Holds 25 rounds.
Modified Version.
SIG SG 552-2
The SIG SG 552-2 appears as the "Commando 553" (referring to the SG553 instead) and is available to purchase by anyone who owns the Armored Transport DLC. It Holds 30 rounds. The rifle can be confirmed as a 552-2 by the permanent scope rail and the simple, folding front and rear iron sights instead of the original sights of the SIG assault rifle series.
Modified Version.
Springfield Armory M1A SOCOM 16 / Springfield Armory M14 Designated Marksman Rifle
The Steyr AUG A2 is at reputation level 8 and is named the "UAR" (presumably short for Universal Army Rifle). It holds 30 rounds and is rather accurate and powerful. It can be fitted with a railed fore end to make it resemble an AUG A3, but the rifle still lacks the bolt release of an A3.
Modified Version.
Shotguns
Double Barrel Shotgun
The Double Barrel Shotgun appears as the "Mosconi 12G" and is unlocked at reputation level 39. Obviously it only holds two shells but is one of the most powerful weapons in the game. Has only two modifications
Modified Version.
Izhmash Saiga 12K
The Izhmash Saiga 12K appears as the ninth primary weapon, and the only semi-automatic shotgun available. The model is not based on an actual Saiga 12K, but is rather a hybrid taking several components from the AKMS. Firstly it features a standard ribbed AKMS top cover, rather than the smooth cover used on the Saiga which has a larger ejection port with a sprung sliding cover over the rear portion. Secondly it has an under-folding AKMS stock which was not available on the Saiga. Lastly the receiver is a hybrid of an AKMS one and a Saiga, with the magazine release being immediately ahead of the trigger guard and receiver dimples above the magazine, but with a Saiga 12 style front trunion (lacking the corresponding rivets however). It is named the "IZHMA 12G" and is unlocked at reputation level 26 and holds 7 shells. It is notably used by a Bulldozer variant nicknamed the "Saiga Dozer" that wears black armor.
Modified Version.
Remington Model 870 Field Gun
A Remington Model 870 Field Gun is named the "Reinfeld 880" and is unlocked at reputation level 8, it has synthetic furniture instead of wood and it has pistol grip. It's the first unlockable shotgun. It holds 6 shells and is used by some law enforcers.
Modified Version.
Remington Model 870 Short-barreled
A stubby variant of the Remington Model 870 Short-barreled is unlocked at reputation level 13 and is named the "Locomotive 12G". It holds 6 shells and is the only shotgun as a secondary weapon.
The 'Gage Weapon Pack #02' Downloadable Content introduced 3 new weapons in the players' arsenal. All 3 weapons do not feature an 'aim-down-the-sights' capability, being hip-fired only, and are very inaccurate on full auto. Lastly, the player cannot unfold the bipods to can fire from a stationary position.
Heckler & Koch HK 21E
Returning from the previous instalment, the Heckler & Koch 21E appears as the "Brenner 21" and is unlocked at reputation level 75. It has a 150-round detachable box magazine. The weapon features the rear sight encountered on the MP5 sub machine gun, rather than the one usually manufactured. Also the weapon lacks a bipod but has a side vertical grip instead.
RPK
The RPK appears as the "RPK" and is immediately unlocked at the start, on reputation level 0. It has a 100-round drum magazine capacity. The weapon comes lightly modified with a pair of small Picatinny rails on each side on the front portion of the barrel, an elongated RPK74-style flash hider, and a Romanian AIMS rifle handguard featuring a vertical hand grip.
M249 Para
The M249 Para appears as the "KSP" and is unlocked at reputation level 45. It has a 200-round detachable box magazine. As of the Death Wish update, it is now used by a new Bulldozer
Sniper Rifles
The 'Gage Sniper Pack' Downloadable Content introduced 3 new weapons in the players' arsenal. All 3 weapons are slow firing but powerful bolt action sniper rifles, featuring 2 unique scopes and a .45 degree off-set iron sight attachment. All 3 are capable of firing through certain objects, such as thin walls or police riot shields.
Remington MSR
The Remington MSR appears as the "Rattlesnake" and is unlocked at reputation level 15. It is featured either with a default wooden or optional aluminium alloy body. It uses a 10 round magazine.
Blaser R93
The Blaser R93 appears as the "R93" and is unlocked at reputation level 35. It is featured either with a default metal or optional wooden body. It uses a 6 round magazine.
Barrett M95
The Barrett M95 appears as the "Thanatos" and is unlocked at reputation level 65. It uses a 5 round magazine.
Others
C4
Heckler & Koch MP5K
The Heckler & Koch MP5K appears only in a suitcase, though can be used by modifying an MP5.