Wilson Combat Match Grade Barrel .45 ACP Glock 21 4.6in Stainless. After decades of improvement and development we ve fully modernized this iconic component in order to better serve our loyal customers.The renowned trigger is loaded with all the components for a sleek and smooth operation making it easy to install. Little fitting or adjustment of any kind may be required for proper installation.The ultra-durable three-hole serrated aluminum pad with a matte finish is just the right size for most shooters. A drilled and tapped overtravel screw ensures minimal backlash after you pull the trigger for maximum accuracy. Weighing less than the majority of factory triggers our three-hole design significantly decreases the risk of trigger bounce during use--an occurrence that can harm your hammer and sear surfaces. Crafted from high-grade stainless steel the bow of this trigger is precisely cut with a refined polish and includes take-up tabs to adjust pre-travel prior to sear disengagement. Specifications for Wilson Combat Match Grade Barrel: Manufacturer: Wilson Combat Color: Silver Fabric/Material: Stainless Steel Barrel Material: Steel Barrel Twist Rate: 1-16 Condition: New Quantity: 1 Package Contents: Wilson Combat Match Grade Barrel What firearm models does the manufacturer say Wilson Combat Match Grade Barrel is compatible with? The manufacturer suggests that Wilson Combat Match Grade Barrel is compatible with Glock 21 .45 ACP Glock 17 Glock 19 Glock 34 1911 Smith & Wesson M&P Full SizeWilson Combat 381: Match Grade Barrel .45 ACP Glock 21 4.6in Stainless