Custom Builds

Elevate your gel ball game with Gel Ball Undercover's Custom Builds. Our expert technicians create tailor-made gel blasters to suit your specific requirements, ensuring a unique and high-performance experience on the battlefield.
2025 SALE! SALE! Custom Rifles Custom Pistols GBBR Exclusive Customs
All Custom Builds Stage 2 Stage 3 Stage 4
  • GBU #10 Custom - Gel Blaster (Metal)

    GBU #10 Custom - Gel Blaster (Metal)

    Sold out

    GBU #10 Custom - Gel Blaster (Metal)

    $1,199.00
    $1,199.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #09 Custom - Gel Blaster (Metal)

    GBU #09 Custom - Gel Blaster (Metal)

    Sold out

    GBU #09 Custom - Gel Blaster (Metal)

    $1,220.00
    $1,220.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • Custom HLF ARP 9 - Gel Blaster

    Custom HLF ARP 9 - Gel Blaster

    Sold out

    Custom HLF ARP 9 - Gel Blaster

    $749.99
    $749.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Import" GBU Custom - Gel Blaster (Metal)

    "M4 Import" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Import" GBU Custom - Gel Blaster (Metal)

    $950.00
    $950.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #08 Custom - Gel Blaster (Metal)

    GBU #08 Custom - Gel Blaster (Metal)

    Sold out

    GBU #08 Custom - Gel Blaster (Metal)

    $1,850.00
    $1,850.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #07 Custom - Gel Blaster (Metal)

    GBU #07 Custom - Gel Blaster (Metal)

    Sold out

    GBU #07 Custom - Gel Blaster (Metal)

    $1,850.00
    $1,850.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Badger" GBU Custom - Gel Blaster

    "M4 Badger" GBU Custom - Gel Blaster

    Sold out

    "M4 Badger" GBU Custom - Gel Blaster

    $1,150.00
    $1,150.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #05 Custom - Gel Blaster (Metal)

    GBU #05 Custom - Gel Blaster (Metal)

    Sold out

    GBU #05 Custom - Gel Blaster (Metal)

    $1,199.00
    $1,199.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #06 Custom - Gel Blaster (Metal)

    GBU #06 Custom - Gel Blaster (Metal)

    Sold out

    GBU #06 Custom - Gel Blaster (Metal)

    $1,199.00
    $1,199.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #04 Custom - Gel Blaster (Metal)

    GBU #04 Custom - Gel Blaster (Metal)

    Sold out

    GBU #04 Custom - Gel Blaster (Metal)

    $1,199.00
    $1,199.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #02 Custom - Gel Blaster (Metal)

    GBU #02 Custom - Gel Blaster (Metal)

    Sold out

    GBU #02 Custom - Gel Blaster (Metal)

    $1,599.00
    $1,599.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #01 Custom - Gel Blaster (Metal)

    GBU #01 Custom - Gel Blaster (Metal)

    Sold out

    GBU #01 Custom - Gel Blaster (Metal)

    $1,450.00
    $1,450.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • Kythera HPA Full Custom Noveske - Gel Blaster (Metal)

    Kythera HPA Full Custom Noveske - Gel Blaster (Metal)

    Sold out

    Kythera HPA Full Custom Noveske - Gel Blaster (Metal)

    $2,750.00
    $2,750.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Striker" GBU Custom - Gel Blaster (Metal)

    "M4 Striker" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Striker" GBU Custom - Gel Blaster (Metal)

    $865.00
    $865.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Black Ops MK47" GBU Custom - Gel Blaster

    "Black Ops MK47" GBU Custom - Gel Blaster

    Sold out

    "Black Ops MK47" GBU Custom - Gel Blaster

    $625.00
    $625.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU #03 Custom - Gel Blaster (Metal)

    GBU #03 Custom - Gel Blaster (Metal)

    Sold out

    GBU #03 Custom - Gel Blaster (Metal)

    $2,200.00
    $2,200.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Nimbus" GBU Custom - Gel Blaster (Metal)

    "M4 Nimbus" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Nimbus" GBU Custom - Gel Blaster (Metal)

    $1,050.00
    $1,050.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Mask Off" GBU Custom - Gel Blaster (Metal)

    "Mask Off" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Mask Off" GBU Custom - Gel Blaster (Metal)

    $945.00
    $945.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • Custom GBU & STIG HPA Blaster - Gel Blaster (1 of 1)

    Custom GBU & STIG HPA Blaster - Gel Blaster (1 of 1)

    Sold out

    Custom GBU & STIG HPA Blaster - Gel Blaster (1 of 1)

    $3,250.00
    $3,250.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Wolf-Gang" GBU Custom - Gel Blaster (Metal)

    "Wolf-Gang" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Wolf-Gang" GBU Custom - Gel Blaster (Metal)

    $965.00
    $965.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "The Chronicle" GBU Custom - Gel Blaster (Metal)

    "The Chronicle" GBU Custom - Gel Blaster (Metal)

    Sold out

    "The Chronicle" GBU Custom - Gel Blaster (Metal)

    $859.99
    $859.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Trooper" GBU Custom - Gel Blaster (Metal)

    "Trooper" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Trooper" GBU Custom - Gel Blaster (Metal)

    $1,199.00
    $1,199.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • Custom GMX Polished Hi-Capa OPS MRP Gas Pistol - Gel Blaster

    Custom GMX Polished Hi-Capa OPS MRP Gas Pistol - Gel Blaster

    Sold out

    Custom GMX Polished Hi-Capa OPS MRP Gas Pistol - Gel Blaster

    $670.00
    $670.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Gonzales" GBU Custom - Gel Blaster (Metal)

    "M4 Gonzales" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Gonzales" GBU Custom - Gel Blaster (Metal)

    $950.00
    $950.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Precision" GBU Custom - Gel Blaster (Metal)

    "M4 Precision" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Precision" GBU Custom - Gel Blaster (Metal)

    $1,250.00
    $1,250.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Enter Sandman" GBU Custom - Gel Blaster (Metal)

    "Enter Sandman" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Enter Sandman" GBU Custom - Gel Blaster (Metal)

    $889.99
    $889.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Return of the Sleeper" GBU Custom - Gel Blaster (Nylon)

    "Return of the Sleeper" GBU Custom - Gel Blaster (Nylon)

    Sold out

    "Return of the Sleeper" GBU Custom - Gel Blaster (Nylon)

    $1,299.00
    $1,299.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Classic Army ARP9" GBU Custom - Gel Blaster (Metal)

    "Classic Army ARP9" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Classic Army ARP9" GBU Custom - Gel Blaster (Metal)

    $870.00
    $870.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Goochy" GBU Custom - Gel Blaster (Metal)

    "Goochy" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Goochy" GBU Custom - Gel Blaster (Metal)

    $1,699.99
    $1,699.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "SpeedQB GHOST" GBU Custom - Gel Blaster (1 of 1)

    "SpeedQB GHOST" GBU Custom - Gel Blaster (1 of 1)

    Sold out

    "SpeedQB GHOST" GBU Custom - Gel Blaster (1 of 1)

    $1,550.00
    $1,550.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "The OG Joker" GBU Custom - Gel Blaster (Metal)

    "The OG Joker" GBU Custom - Gel Blaster (Metal)

    Sold out

    "The OG Joker" GBU Custom - Gel Blaster (Metal)

    $1,799.99
    $1,799.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Stinger" GBU Custom - Gel Blaster (Metal)

    "Stinger" GBU Custom - Gel Blaster (Metal)

    Sold out

    "Stinger" GBU Custom - Gel Blaster (Metal)

    $899.99
    $899.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Striker" GBU Custom - Gel Blaster (Metal)

    "M4 Striker" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Striker" GBU Custom - Gel Blaster (Metal)

    $999.99
    $999.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Hurricane" GBU Custom - Gel Blaster (Metal)

    "M4 Hurricane" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Hurricane" GBU Custom - Gel Blaster (Metal)

    $699.00
    $699.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Tango" GBU Custom - Gel Blaster (Metal)

    "M4 Tango" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M4 Tango" GBU Custom - Gel Blaster (Metal)

    $859.99
    $859.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M16 Snub A" GBU Custom - Gel Blaster (Metal)

    "M16 Snub A" GBU Custom - Gel Blaster (Metal)

    Sold out

    "M16 Snub A" GBU Custom - Gel Blaster (Metal)

    $789.99
    $849.99 $789.99
    7% OFF Sold out
    Sold out
  • "Knight Rider" APS GBU Custom - Gel Blaster (Metal)

    "Knight Rider" APS GBU Custom - Gel Blaster (Metal)

    Sold out

    "Knight Rider" APS GBU Custom - Gel Blaster (Metal)

    $900.00
    $900.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • CQB GBU Custom M4 - Gel Blaster

    CQB GBU Custom M4 - Gel Blaster

    Sold out

    CQB GBU Custom M4 - Gel Blaster

    $800.00
    $800.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • M4A1 Gen 9 - Gel Blaster (Stage 1 Upgrade)

    M4A1 Gen 9 - Gel Blaster (Stage 1 Upgrade)

    Sold out

    M4A1 Gen 9 - Gel Blaster (Stage 1 Upgrade)

    $270.00
    $300.00 $270.00
    10% OFF Sold out
    Sold out
  • Tactical M4 GBU Custom - Gel Blaster (Metal)

    Tactical M4 GBU Custom - Gel Blaster (Metal)

    Sold out

    Tactical M4 GBU Custom - Gel Blaster (Metal)

    $1,300.00
    $1,300.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "M4 Raw" GBU (Battle-Worn) Custom - Gel Blaster (Metal) (1 of 1)

    "M4 Raw" GBU (Battle-Worn) Custom - Gel Blaster (Metal) (1 of 1)

    Sold out

    "M4 Raw" GBU (Battle-Worn) Custom - Gel Blaster (Metal) (1 of 1)

    $1,699.99
    $1,699.99
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • "Gold Finger" GBU Custom M4 - Gel Blaster (Metal)

    "Gold Finger" GBU Custom M4 - Gel Blaster (Metal)

    Sold out

    "Gold Finger" GBU Custom M4 - Gel Blaster (Metal)

    $900.00
    $900.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • Solid M4 GBU Custom - Gel Blaster (Metal)

    Solid M4 GBU Custom - Gel Blaster (Metal)

    Sold out

    Solid M4 GBU Custom - Gel Blaster (Metal)

    $950.00
    $950.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • Fortis M4 GBU Custom - Gel Blaster (Metal)

    Fortis M4 GBU Custom - Gel Blaster (Metal)

    Sold out

    Fortis M4 GBU Custom - Gel Blaster (Metal)

    $1,199.00
    $1,199.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU Custom SLR - Gel Blaster (Nylon)

    GBU Custom SLR - Gel Blaster (Nylon)

    Sold out

    GBU Custom SLR - Gel Blaster (Nylon)

    $700.00
    $700.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU Custom CYMA SPR - Gel Blaster (Metal)

    GBU Custom CYMA SPR - Gel Blaster (Metal)

    Sold out

    GBU Custom CYMA SPR - Gel Blaster (Metal)

    $1,699.00
    $1,699.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU Custom CYMA M4 CQB-R - Gel Blaster (Metal)

    GBU Custom CYMA M4 CQB-R - Gel Blaster (Metal)

    Sold out

    GBU Custom CYMA M4 CQB-R - Gel Blaster (Metal)

    $1,100.00
    $1,100.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU Custom CYMA SPR MOD 1 - Gel Blaster (Metal)

    GBU Custom CYMA SPR MOD 1 - Gel Blaster (Metal)

    Sold out

    GBU Custom CYMA SPR MOD 1 - Gel Blaster (Metal)

    $1,350.00
    $1,350.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • GBU Custom John Wick Style CYMA Platinum - Gel Blaster (Metal)

    GBU Custom John Wick Style CYMA Platinum - Gel Blaster (Metal)

    Sold out

    GBU Custom John Wick Style CYMA Platinum - Gel Blaster (Metal)

    $1,150.00
    $1,150.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out
  • HPA Full Custom SLR CQB - Gel Blaster (Tan)

    HPA Full Custom SLR CQB - Gel Blaster (Tan)

    Sold out

    HPA Full Custom SLR CQB - Gel Blaster (Tan)

    $1,850.00
    $1,850.00
    Liquid error (snippets/price line 147): divided by 0% OFF Sold out
    Sold out