The JP36 is a well-rounded primary with good damage and excellent total ammo. Its main weakness is the relatively small pool of attachments available for it. Its high total ammo allows it to fill a supportive role and makes it an excellent choice for keeping enemies suppressed. With stability-increasing attachments such as Sniper Stock and Polizei Special, it has very low recoil and as such can be used even at far ranges, making it even more effective as a support gun.
The JP36 can also be a useful back-up weapon in stealth loadouts, with its modifications that provide high concealment (specifically the Compact Foregrip and the Solid Stock). It can easily make up for the player's possibly weak secondary in Plan B (assault) and keep visibility low during the stealth portion. However, its somewhat high rate of fire will be more difficult to control.
JP36's standard sights are quite obstructive; attaching a sight may be needed.
As the JP36 lacks the high stopping power of other rifles, firing in short bursts of 2-4 rounds or single precise shots is the best way to maximize ammo efficiency.
Since it is very ammo efficient, it is good for prolonged heists like Rats or The Big Bank. As such, using this weapon when most of your teammates are bringing ammo, or purchasing many ammo bags via assets/preplanning is not recommended, unless you are also using a specialized secondary (i.e. a Street Sweeper with HE rounds), as this nullifies the weapon's main advantage (lots of total ammo).
*The Polizei Special was based on the carbine-length G36 RAS by Knight's Armament. *The holes on the sides of the handguard are part of the texture and cannot be seen through. This can be observed by modding the JP36 with it and tilting the weapon in preview.
*The LED Combo is based on the Leapers, Inc. UTG LED Weapon light and Laser. **Although the main flashlight has a toggle switch, the laser sight component of the LED Combo is pressure-activated, meaning the laser will stay on as long as the pressure switch is depressed. This switch is not placed where it should be, however (on foregrips, magazine wells, etc...) and is instead ziptied to the main taclight, leaving no plausible mean for the user to toggle it without awkwardly moving their off hand off the weapon and gripping the attachment itself.
*The Speed Pull Magazine is not a typical Magazine mod, but rather a dedicated sleeve going around a weapon's magazine that allows for much quicker mag changes in the heat of the fight. *The various Speed Pull Magazines are based on the Magpul Original Magpul® – 5.56 NATO and Original Magpul® – 9mm Subgun, with the exception of the Kobus 90's, which simply utilizes a yellow strap. **Strangely, despite using magazines identical to, using magazines similar to, or capable of using magazines used on other guns compatible with the Speed Pull Magazine, it cannot be equipped on the Compact-5, CMP, Commando 553, SpecOps, Blaster 9mm, Uzi, Clarion, Patchett L2A1, Lion's Roar, Jacket's Piece, and Micro Uzi. **The Eagle Heavy is equipped with an Original Magpul® – 7.62 NATO by default, but it does not increase the weapon's reload speed, nor can it be equipped with the Speed Pull Magazine. *Due to it supporting a wide array of weapons, the Speed Pull Magazine is the first single modification to have multiple different icons. *The Speed Pull Magazine equips the AMCAR, Para, and AMR-16 with the Milspec Mag., but despite this they neither get increased magazine capacity nor reduced concealability, however it equips the Mark 10 with its Extended Mag and does give it increased magazine size, but does not increase stability nor does it decrease its concealment. Additionally, equipping the Speed Pull Magazine on the AK.762, Golden AK.762, and Krinkov will give them the AK's 5.45mm Bakelite magazine, despite the mismatched caliber.
*Upon release, the default reticle of this sight was a chevron instead of the retail version's red dot. After the release of the Gage Mod Courier DLC, it was reverted to the regular sight's red dot. *It is functionally the same as the standard Military Red Dot Sight, but the sight's casing is tan instead of black with the line "A-10" scrawled on near the adjustment knob. The sticker on the lens cap's interior also says "I <3 Payday" instead of having a picture of an American flag. *This sight was based on the Aimpoint CompM2 optic. While it is portrayed as a high-zoom scope in-game, the CompM2 is actually a reflex sight, meaning it offers no magnification in reality.
The Acough has the greatest zoom in the game for a non-sniper scope. That being said; the high zoom level combined with its bulky sight casing can hamper target acquisition at point blank range, pairing the scope with a laser sight can dramatically alleviate this potential difficulty.
*It is based on the stock and trigger group of the SL8, though unusual in that it has a G36's fire selector block. The SL8 is only capable of semi-automatic fire, and even when modded to full-automatic it would seem unlikely to include a selective fire function as seen and used in-game. *Attaching the Sniper Stock causes the JP36's right-hand side fire selector switch to vanish.
The JP36 is based on the G36KV, as evidenced by its Navy-style fire selector. The weapon model's proportions are a little off and the barrel is a different length, hinting that it might've been modeled from an airsoft cousin. It is also fitted with the compact flash hider and picatinny carry handle of the G36C. When modded with the Original Sight it becomes a regular G36K, when equipped with the Compact Foregrip it becomes a legitimate G36C, it becomes a G36E with the Long Foregrip equipped. Equipping the Original Sight and Long Foregrip turns it into a regular G36. Equipping the Long Foregrip and Sniper Stock will make the JP36 resemble a Heckler & Koch SL8, changing it to Single Fire will make it function similarly too.
When adding the Compact Foregrip to the JP36, the game may warn the player that the Long Barrel modification will be removed, despite the JP36 not having any Barrel modifications. This likely hints at the existence of a Long Barrel before it was removed from the retail game. A G36K fitted with the Long Barrel is essentially the baseline G36 rifle.
The Sniper Stock mod is similar to the stock of the SL8, a marketed "sporting"/civilian version of the G36, discontinued in 2011. The SL8 is only capable of semi-automatic fire, and even when modded to full-auto, it would seem unlikely to include a selective fire function as seen and used in-game.
Despite having factory rails by default, the JP36 would gain a different, longer right-sided rail mount when a gadget is installed.
JP36 happens to be the SKU number for the discontinued Echo1 airsoft X36. This isn't actually unusual, consider most of the guns in PAYDAY 2 are based on Airsoft products.
"PJ G36" can be seen on the left-hand side of the weapon.
Prior to update #65, looking at the translucent magazine of the JP36 showed no rounds inside of it, the player loaded an empty magazine into the weapon every time a reload was started. The new magazine now has bullets clearly modeled into it, though the details of the magazine walls are rather poor. It also lacks a baseplate and spring, which will prevent it from loading follow-up rounds into the weapon.
Feed lips are also entirely absent from the magazine model.
Contrary to the rest of PAYDAY 2's weaponry, the player characters all exhibits surprisingly poor trigger discipline when performing a melee attack with the JP36, as their trigger fingers are still in place during the entire process. Were the same melee technique to be performed in real life, the weapon would discharge by accident every time a hit is attempted, not to mention the animation itself is very awkward and seemingly weak and would not realistically cause any significant damage. That is, if its plastic magazine remains unbroken after the strike. The animation has not been replaced following the first-person model update.
The JP36 is shown on the cover art held by Wolf and attached with a See More Sight, although the See More Sight had not yet been added to the game at the time. The same weapon (a Compact Foregrip is sometimes present) is also seen held by him in many other instances of game art such as the Bomb Heists splash image and various community event updates.
The awkward-looking sight featured on the JP36 is actually the weapon's long-range aperture. The real-life G36/JP36 iron sight group has two separate apertures intended for close-range and long-range aiming, with the close-range sight ring being broader and not as obstructive. The close-range sight is presumably flipped down in-game.
The JP36's ironsights are nearly identical to that of the Lion's Roar.
Although the JP36 cannot use Grip modifications, the Gun Modification section in The Guide of Bain shows the Pro Grip as a mod for it.