OOD Standard-Bore Machined Aluminum Barrel

The OOD Standard-Bore Barrel is a machined aluminum barrel tube for spring-powered foam dart blasters. Precision-machined from high-quality aluminum with a consistent 13mm inner diameter, these premium barrels are the best choice for high-performance blaster builds. Additionally, multiple lengths are available in 50mm increments, allowing for reliable, predictable performance tuning.

FEATURES:
• OOD Tight-Bore Barrel
• Precision-machined aluminum tubing
• For high-performance springers
• Consistent 13mm ID*
• Unchambered with simple chamfered inlets
• Designed for most standard-breech springers
• Compatible with SLAB, SMILEY + Caliburn
• Not compatible with Worker Seagull, Harrier, or Kunlun

*Some remaining inventory is "chambered," meaning the first 12mm of barrel is wider inside to accommodate larger rams and o-rings present in legacy builds. Standard unchambered barrels will work better in most current springers

INCLUDES: 
• 1 13mm ID barrel in the length of your choice

PERFORMANCE: 
Average FPS (Standard Deviation) in Silly’s Alchemist
with 2.03 x 140mm spring + 350mm (~14in) barrel
• 233 (5) FPS with 0.527in (13.38mm) barrel
• 244 (2) FPS with 13mm barrel
• 246 (3) FPS with 0.509in (12.93mm) barrel
• 247 (3) FPS with 12.75mm barrel

SPECS:
• Material: Machined Aluminum
• Dimensions:
     ID: 12.95mm
     OD: 16.00mm
     Lengths: 100-550mm
     Tolerance: ±0.05mm
• Weight: 94g
• SKU: BARREL_13MM

LINKS:
• DASH-016 Collet O-ring
• 140mm Tuning Springs
• Tight-Bore Barrels
• All Springer Barrels