Hard hitting and lethal. The Falcon rifle offers a blend of the 7.62x52mm's(sic) stopping power in a highly modular package. With over 50 years of service worldwide it's seen it's fair share of battles and proved it's reliability in such environments.Keep in mind it's length and hefty recoil when engaging in a brawl with the law. If used correctly, it'll prove to be a valuable asset when the shit hits the fan.
The Falcon Rifle is a high-powered precision rifle very similar to the Eagle Heavy Rifle in terms of general stats, performance, and role. Like the Eagle Heavy, it is considered the middle ground between the M308 and higher level assault rifles, such as the AMR-16 or the AK.762. As a result, it is very powerful at medium range combat. However, without extensive modification, the Falcon's long-range accuracy and stability are somewhat lacking compared to the Eagle's.
Both the Falcon Rifle and Eagle Heavy have similar damages, of 80 and 81 damage respectively; compared to the Eagle, the Falcon Rifle has a higher rate of fire and slightly less accuracy. The weapon can have its damage boosted to a maximum of  using all the damage-focus mods it can use (Funnel of Fun Nozzle, a Retro or Marksman Foregrip, and the Auto Fire mod), which allows it to destroy virtually anything in it's path with powerful and accurate fire.
As with the Eagle, the Falcon is exceptionally good at dispatching special enemies; Tasers and Cloakers should take no more than 3-4 headshots. Bulldozers may prove more challenging, but the Falcon's accuracy over range and rate of fire up close should allow it to perform acceptably against them in any situation.
One possible advantage the Falcon Rifle has is unlocking attachments; while the Eagle Heavy needs Cards to unlock certain attachments, all attachments (except muzzle extensions, trigger modifications, and scopes) available for the Falcon can be unlocked by completing certain achievements and they are all relatively cheap to install; only $55,200 for each mod. Since most achievements introduced in the new update can be unlocked within a single play-through, it is not uncommon to have 4 to 5 mods unlocked by the end of a session. It is important to note that the Falcon is significantly more costly compared to the Eagle Heavy and has a reputation requirement of 42, offsetting the availability of its mods and perhaps making the Eagle more appealing for low-level players.
One other unusual quirk of the Falcon (and Eagle Heavy, in fact) is its superior accuracy when fired from the hip compared to most other assault rifles. It should be noted, however, that both rifles also lose accuracy when crouching and firing from the hip. Its precision when using full scopes is not influenced by crouching.
Aside from universal mods, all mods must be unlocked by completing achievements, some of which are much harder than usual. In particular the Wooden Foregrip, CQB Foregrip, and CQB Stock (all popular modifications in the builds below) are difficult to unlock and may require practice with a crew. By contrast, the Retro Foregrip is the easiest weapon modification to unlock, and the Tactical Grip is fairly easy if you play online.
That said, it may well be faster and easier to unlock all the achievements than to farm the card-drops required for many similar assault rifles, and some players may prefer a skill challenge to farming drops from a pseudo-random number generator. Whether achievement-unlocked modifications are a pro or a con depends very much on the player.
The Falcon has a rather high amount of full-auto recoil, so firing in short controlled bursts is recommended. One can also switch the rifle to semi-automatic mode to circumvent the issue, but the kick up from repeated shots may still cause aiming problems.
The Falcon is generally efficient with ammo pickups, replenishing 3 to 5 rounds per pickup. This, combined with its low total ammo, makes replenishing the player's ammo reserve a trivial matter. The Extended Magazine is recommended if the player wants to keep on firing for longer.
The Falcon reloads surprisingly quickly for an assault rifle, even without the bonuses from Skills. This is especially noticeable if the magazine is empty - the Falcon takes almost no extra time to reload compared to most other weapons.
There is currently an exploitable trick involving the Falcon: holding down the aim button while reloading will "skip out" the last few frames of the process and automatically enter aiming mode, thus giving the player an advantage in combat.
The Falcon's base Concealment is rather low, but can be optimized with the CQB Foregrip, Tactical Grip and CQB Stock for a respectable Concealment value of 23. Whilst not the most concealable primary weapon, the Falcon can still make for a fairly powerful backup option.
This foregrip changes the FAL into the Israeli FAL LB variant, also known as the IMI Romat. Adding the Retro Foregrip and the Wooden Stock will convert the Falcon into this.
The Retro Foregrip is similar to the Belgian Heat Handguard of the Ak 5. As the Ak 5 is basically a Swedish FN FNC, which was made based on the FN FAL (Falcon), the Retro Foregrip and the Belgian Heat is essentially the same item.
The Marksman Foregrip was most likely based on the custom sniper handguard of the FAL made by Imbel, though lacking the lower row of vent holes as the real-life handguard has two rows of slots cut into the sides for extra ventilation and air cooling.
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.
Requires a pre-installed sight mod to mount. The magnification level can be changed while aiming down the sights, and the aiming FOV will automatically adjust itself. Not compatible with the Acough Optic, Military Red Dot, Milspec Scope, Combat Sight, Reconnaissance Sight, Theia Magnified Scope, Box Buddy Sight, the JP36's Original Sight, the Raven's Flip-up Sight or the GROM and Platypus 70's iron sights. Currently bugged and not appearing as intended on certain weapons, for a list see here. They're still listed below even if broken.
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 Falcon is based on a modified DSA SA-58 OSW. It is fitted with the full-length handguard, barrel, stock, and short magazine to emulate the looks of the standard Fabrique Nationale FAL. Additionally, it seems to have been modded with a DSA .308 receiver, as evident in the factory stamping on the left side of the weapon.
Despite being classified as an assault rifle in-game, in reality the FN FAL is considered a battle rifle due to the full-power rifle cartridges it fires. Likely due to a typo, however, the Big Bank DLC's announcement site blurb claims it was chambered in 7.62x52mm instead of the real FAL's 7.62x51mm.
Despite being largely based on a metric-FAL, the fire selector switch of the Falcon belongs to the Imperial unit-based L1A1 SLR while bearing the German "S-E-D" markings instead of the usual "S-R" (L1A1)/"S-R-A" (SA-58). This is unusual, as even though the L1A1 is simply a British copy of the FAL, it was redesigned based on the Imperial measurements system and thus its parts are not interchangeable with metric-based FAL variants.
Interestingly, the selector switch is set to "E" ("Einzelfeuer" a.k.a. "single-fire"), yet the weapon still fires automatically.
The rifle's name is a wordplay on the FAL's name: "Falcon".
Stamped onto the right side of the Falcon's receiver are the words "LK BARRINGTON, IL", which is a nod to the Barrington, Illinois-based DSA Arms, the manufacturer of the SA-58.
It is the first weapon in PAYDAY 2 to have unique mods tied to achievement progression rather than random drops.
It has the second highest amount of unique attachments for a DLC weapon at a remarkable 9, surpassed only by the Gecko 7.62 rifle which has 11.
Update #30.3 increased the Falcon's rate of fire from 650 to 700.
The original muzzle brake on the rifle can be seen to clip through any barrel attachments put onto the rifle.
A FAL with a Beta-C drum magazine is used by Chains in the John Wick trailer during his shootout with police forces. While that modification is possible on a real FAL, it is not available in-game.