Click to expand Tap to zoom ZCI M4/M16 Outer Barrel by ZCI Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $34.99 SKU 11901 5.5'' - $34.99 10.5'' - $39.99 14.5'' - $49.99 5.5'' 10.5'' 14.5'' LENGTH '' 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Features Aluminum alloy construction; anodized matte black One piece design Ultra light weight Specifications: Thread Direction: 14mm NegativeCompatibility: For Tokyo Marui, Matrix and Other Compatible M4 / M16 Series Airsoft AEG Rifles