! Caliber !! Compatible magazines !! Corresponding base models
|-
| '''[[7.62x39mm]]''' || [[AK-47 magazines]] || [[AKM]]<br/>[[AKMS]]<br/>[[AKMSU]]<br/>[[RPK]]<br/>[[AK-103]]<br/>[[AK-104]]<br/>[[AK-12-2]]
|-
| '''[[5.45x39mm]]''' || [[AK-74 magazines]] || [[AK-74]]<br/>[[AKS-74]]<br/>[[AKS-74U]]<br/>[[RPK-74]]<br/>[[AK-105]]<br/>[[Saiga SGL31-61]]<br/>[[AK-12-1]]
|-
| '''[[5.56x45mm NATO]]''' || [[AK-101 magazines]] || [[AK-101]]<br/>[[AK-102]]<br/>[[AK-12-3]]
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| '''[[6x45mm]]''' || [[AK-101 magazines]] ||
! Configuration name !! Effects !! Corresponding base models !! Cost ([[File:Parallar symbol.png|10px]]) !! Description
|-
| '''Soviet threading''' || Muzzle: AK devices || [[AKM]]<br/>[[AKMS]]<br/>[[AK-74]]<br/>[[AKS-74]]<br/>[[AKMSU]]<br/>[[AKS-74U]]<br/>[[AK-101]]<br/>[[AK-102]]<br/>[[AK-103]]<br/>[[AK-104]]<br/>[[AK-105]]<br/>[[RPK]]<br/>[[RPK-74]]<br/>[[Saiga SGL31-61]] || '''200''' || Original muzzle threading system for mounting AK muzzle devices.
|-
| '''Standard threading''' || Muzzle: Standard devices || [[AK-12-1]]<br/>[[AK-12-2]]<br/>[[AK-12-3]] || '''400''' || Modern muzzle threading system for mounting Standard muzzle devices.
| '''Rifle''' || 16.3 inches || Bayonet compatibility: [[6X5 AK bayonet]] || [[AKM]]<br/>[[AKMS]]<br/>[[AK-74]]<br/>[[AKS-74]]<br/>[[AK-101]]<br/>[[AK-103]]<br/>[[AK-12-1]]<br/>[[AK-12-2]]<br/>[[AK-12-3]]<br/>[[Saiga SGL31-61]] || '''300''' || Installs a standard rifle-length 16.3 inch barrel.
|-
| '''Carbine''' || 12.4 inches || Weapon becomes Class 2<br/>Weight -1 tier || [[AK-102]]<br/>[[AK-104]]<br/>[[AK-105]] || '''600''' || Installs a short 12.4 inch barrel, as introduced by the carbine-length AK-100 models.
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| '''Subcarbine''' || 8.1 inches || Weapon becomes Class 2<br/>Weight -2 tiers || [[AKMSU]]<br/>[[AKS-74U]] || '''800''' || Installs a very short 8.1 inch barrel, alongside the AKS-74U style receiver, dust cover and rear sight, minimizing size and weight at the expense of ballistic performance.
! Configuration name !! Fire modes !! Corresponding base models !! Cost ([[File:Parallar symbol.png|10px]]) !! Description
|-
| '''Safe/Auto/Semi''' || Semi/Full, AutoROF 5 || [[AKM]]<br/>[[AKMS]]<br/>[[AK-74]]<br/>[[AKS-74]]<br/>[[AK-101]]<br/>[[AK-102]]<br/>[[AK-103]]<br/>[[AK-104]]<br/>[[AK-105]]<br/>[[RPK]]<br/>[[RPK-74]] || '''400''' || Original select-fire trigger control group, with semi-auto and full-auto, no burst mode.
|-
| '''Safe/Auto/3/Semi''' || Semi/Burst3/Full, AutoROF 5 || [[AK-12-1]]<br/>[[AK-12-2]]<br/>[[AK-12-3]] || '''500''' || Trigger control group featuring a 3-round burst mode.
! Configuration name !! Effects !! Corresponding base models !! Cost ([[File:Parallar symbol.png|10px]]) !! Description
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| '''Regular''' || Underbarrel: GP-30 mount (if '''Rifle''' barrel is installed, otherwise None) || [[AKM]]<br/>[[AKMS]]<br/>[[AK-74]]<br/>[[AKS-74]]<br/>[[AKS-74U]]<br/>[[AK-101]]<br/>[[AK-102]]<br/>[[AK-103]]<br/>[[AK-104]]<br/>[[AK-105]]<br/>[[Saiga SGL31-61]] || '''200''' || Original handguard, made of wood or plastic, without special attachment points.
|-
| '''Foregrip''' || Underbarrel: Integrated foregrip || [[AKMSU]] || '''400''' || Installs specially shaped foregrip handguard, such as those found on the [[AKMSU]].
! Configuration name !! Effects !! Corresponding base models !! Cost ([[File:Parallar symbol.png|10px]]) !! Description
|-
| '''N receiver''' || Optics: WP mount || [[AKM]]<br/>[[AKMS]]<br/>[[AK-74]]<br/>[[AKS-74]]<br/>[[AKMSU]]<br/>[[AKS-74U]]<br/>[[AK-101]]<br/>[[AK-102]]<br/>[[AK-103]]<br/>[[AK-104]]<br/>[[AK-105]]<br/>[[RPK]]<br/>[[RPK-74]]<br/>[[Saiga SGL31-61]] || '''400''' || Original "N" receiver type featuring a side mount for WP optics.
|-
| '''Railed receiver''' || Optics: NATO mount || [[AK-12-1]]<br/>[[AK-12-2]]<br/>[[AK-12-3]] || '''600''' || AK-12 style receiver type featuring a strengthened and railed dust cover.
| '''Fixed stock''' || '''S''' || None || [[AKM]]<br/>[[AK-74]]<br/>[[RPK]]<br/>[[RPK-74]] || '''150''' || Fixed, nonadjustable stock, typically made out of wood or plastic, mated to an appropriate receiver.
|-
| '''Folding stock''' || '''FS''' || None || [[AKMS]]<br/>[[AKS-74]]<br/>[[AKMSU]]<br/>[[AKS-74U]]<br/>[[AK-101]]<br/>[[AK-102]]<br/>[[AK-103]]<br/>[[AK-104]]<br/>[[AK-105]]<br/>[[Saiga SGL31-61]] || '''400''' || Folding stock, either under-folding or side-folding, mated to an appropriate receiver.
|-
| '''Retractable stock''' || '''RS''' || None || || '''400''' || Fixed-stock receiver with an adapter for an AR-15 style retractable stock.