Dye Boomstick FC-I Barrel Back (Forged Carbon)

Precision Forged. Carbon Reinvented.
DYE is proud to introduce Forge Carbon into the world of paintball with the FC-I Barrel System—a next-generation barrel back crafted from aerospace-grade forged carbon fiber. Lighter, stiffer, and stronger than aluminum, the FC-I shatters the standard of performance barrels by blending cutting-edge material science with DYE’s industry-leading barrel engineering.

Designed as the elite upgrade to the UL-I system, the FC-I utilizes the same interchangeable insert system (compatible with both DYE UL-I and PWR inserts) while delivering enhanced weight reduction and vibration damping. The result? Faster handling, tighter groupings, and a barrel back that won’t warp, flex, or fail—no matter how hard you push it.

For the serious tournament player who demands surgical accuracy and zero compromise, the FC-I is not just a barrel back—it’s your new competitive edge.

Key Features:

Forged Carbon Fiber Construction:
Aerospace-tier forged carbon delivers unmatched stiffness-to-weight ratio, reduced shot signature, and improved barrel harmonics for next-level consistency.
Ultra-Lightweight:
The FC-I weighs significantly less than traditional aluminum barrel backs, enhancing snap shooting and overall marker balance.
Insert-Compatible System:
Works seamlessly with DYE UL-I and PWR bore inserts (.676 to .692), giving you precision control over bore matching for peak efficiency and accuracy.
Precision Control Bore Design:
The FC-I’s 8.5” control bore is multi-stage honed for frictionless velocity control, minimal turbulence, and maximum trajectory stability.
3-Piece Self-Aligning Architecture:
Engineered for a perfect fit between the FC-I back, UL-I/PWR insert, and barrel tip to ensure optimal alignment and eliminate shot wobble.
Progressive Porting & Silent Signature:
DYE’s signature porting pattern delivers whisper-quiet performance and reduces muzzle rise for a flatter, more controlled shot string.
Autococker Quick Threads:
Fast, reliable compatibility with all Autococker-threaded markers.
Optimized Vibration Damping:
Forge carbon’s natural frequency characteristics reduce micro-vibrations and shot feedback, improving precision under rapid fire.

Forged Carbon Fiber Construction
5 Inch Control Bore
Progressive Porting
Ultra-quiet Sound Signature
Optimized Harmonics
Precision Multi-stage Honing
Self-centering 3 Piece Design
Slip Fit, Self-clamping Design
Superior Accuracy
Autococker Quick Threads (barrel back)
Multiple Insert Bore Sizes
Insert Compatibility: FC-I, UL-I, *PWR Systems

*PWR™ trademark is owned by Planet Eclipse Ltd

Boomstick UL-I Backs

BOOMSTICK FC-I BACK - FORGED CARBON FIBER

Boomstick UL-I Barrel Back – Multiple Colors