Pick a base weapon, test attachments in each slot and see the build cost. Gunsmith unlocks at DMZ Level 10, a Weapon Manual unlocks buying a base weapon, and each build takes up to five attachment slots plus an Apex part. Slot fees are 1,000, 5,000, 10,000, 25,000 and 50,000.

Weapons

• Han 86 (Assault Rifle): build cost $6,000; fire rate 740 RPM; magazine 30, reserve 90; level cap 72.
• M4 (Assault Rifle): build cost $6,250; fire rate 810 RPM; magazine 30, reserve 90; level cap 72.
• Hyeon Burst (Assault Rifle): build cost $5,250; fire rate 375 RPM; magazine 30, reserve 90; level cap 68.
• Kastov 762 (Assault Rifle): build cost $5,500; fire rate 600 RPM; magazine 30, reserve 90; level cap 68.
• Patriot XMR (Assault Rifle): build cost $5,850; fire rate 645 RPM; magazine 25, reserve 100; level cap 71.
• Oden (Assault Rifle): build cost $6,250; fire rate 413 RPM; magazine 20, reserve 60; level cap 64.
• Axion (Assault Rifle): build cost $5,750; fire rate 705 RPM; magazine 30, reserve 90; level cap 69.
• Cronen Squall (Assault Rifle): build cost $6,750; fire rate 673 RPM; magazine 20, reserve 80; level cap 67.
• ISO Nightshade (SMG): build cost $4,250; fire rate 923 RPM; magazine 30, reserve 90; level cap 64.
• VEL 46 (SMG): build cost $4,500; fire rate 952 RPM; magazine 40, reserve 120; level cap 60.
• WZ.55 Striga (SMG): build cost $3,500; fire rate 651 RPM; magazine 25, reserve 75; level cap 60.
• X-58 Nyx (SMG): build cost $4,000; fire rate 800 RPM; magazine 40, reserve 120; level cap 53.
• PPSh-41 (SMG): build cost $3,750; fire rate 1110 RPM; magazine 71, reserve 71; level cap 62.
• Rezi 12 (Shotgun): build cost $3,600; fire rate 150 RPM; magazine 6, reserve 24; level cap 59.
• Warlord (Shotgun): build cost $3,150; fire rate 105 RPM; magazine 14, reserve 42; level cap 59.
• Finn LMG (LMG): build cost $7,200; fire rate 587 RPM; magazine 100, reserve 100; level cap 58.
• Type 73 (LMG): build cost $7,500; fire rate 821 RPM; magazine 60, reserve 60; level cap 65.
• APOC-338 (LMG): build cost $6,975; fire rate 554 RPM; magazine 50, reserve 100; level cap 55.
• Mosin-Nagant (Marksman Rifle): build cost $7,500; fire rate 44 RPM; magazine 5, reserve 15; level cap 69.
• MAR-9 (Marksman Rifle): build cost $6,500; fire rate 315 RPM; magazine 20, reserve 60; level cap 73.
• Oris 8.6 (Marksman Rifle): build cost $7,000; fire rate 89 RPM; magazine 10, reserve 30; level cap 70.
• KG-7 Vulcan (Sniper Rifle): build cost $14,400; fire rate 41 RPM; magazine 10, reserve 20; level cap 74.
• Signal 50 (Sniper Rifle): build cost $14,000; fire rate 111 RPM; magazine 7, reserve 21; level cap 74.
• Astaroth .57 (Sniper Rifle): build cost $24,000; fire rate 34 RPM; magazine 3, reserve 9; level cap 54.
• Sang 9mm (Pistol): build cost $1,000; fire rate 370 RPM; magazine 13, reserve 39; level cap 38.
• Krait P68 (Pistol): build cost $1,000; fire rate 260 BPM; magazine 10, reserve 40; level cap 37.
• .50 GS (Pistol): build cost $3,600; fire rate 166 RPM; magazine 7, reserve 21; level cap 36.
• Mojave .357 (Pistol): build cost $2,250; fire rate 141 RPM; magazine 8, reserve 32; level cap 43.
• PILA (Launcher): build cost $25,000; fire rate 8 RPM; magazine 1, reserve 1; level cap 46.
• RPG-8 (Launcher): build cost $10,000; fire rate 20 RPM; magazine 1, reserve 1; level cap 46.
• JOKR (Launcher): build cost $50,000; fire rate 13 RPM; magazine 1, reserve 1; level cap 46.
• PM-40 Anvil (Launcher): build cost $30,000; fire rate 38 RPM; magazine 3, reserve 6; level cap 46.
• FSS Carbon Edge 1095 (Melee): build cost $250; level cap 46.
• Cronen Osprey (Assault Rifle): build cost $4,500; fire rate 882 RPM; magazine 30, reserve None; level cap 70.
• CSG-35 (SMG): build cost $2,700; fire rate 1200 RPM; magazine 28, reserve 112; level cap 42.
• JAK 12 (Shotgun): level cap unknown.
• ZLR Talonhawk (Melee): level cap unknown.

Every weapon

• Han 86
• M4
• Hyeon Burst
• Kastov 762
• Patriot XMR
• Oden
• Axion
• Cronen Squall
• ISO Nightshade
• VEL 46
• WZ.55 Striga
• X-58 Nyx
• PPSh-41
• Rezi 12
• Warlord
• Finn LMG
• Type 73
• APOC-338
• Mosin-Nagant
• MAR-9
• Oris 8.6
• KG-7 Vulcan
• Signal 50
• Astaroth .57
• Sang 9mm
• Krait P68
• .50 GS
• Mojave .357
• PILA
• RPG-8
• JOKR
• PM-40 Anvil
• FSS Carbon Edge 1095
• Cronen Osprey
• CSG-35
• JAK 12
• ZLR Talonhawk