CMC Triggers Glock Flat Trigger Group housing not included - Gen 4 .45 ACP G21 G30 G41 Black/Silver. Utilizing our Patented Signature Flat trigger design weve downsized the overall geometry to create an excellent fit in the Glock pistol. All the superior traits from the AR platform are replicated here in our aftermarket trigger for Glock design. FEATURES: Clean take up Ergonomic design Positive trigger reset Totally self-contained one-piece assembly Made from 6061 T6 aluminum Housing Not Included Easy to install INSTALL VIDEO GLOCK is a federally registered trademark of Glock Inc. and is one of many trademarks owned by Glock Inc. or Glock Ges.m.b.H. CMC Triggers is not affiliated with nor endorsed by Glock Inc. or Glock Ges.m.b.H. Specifications for CMC Triggers Glock Flat Trigger Group - Gen 4 .45 ACP G21 G30 G41 (housing not included): Manufacturer: CMC Triggers Color: Black Package Contents: CMC Triggers Glock Flat Trigger Group - Gen 4 .45 ACP G21 G30 G41 (housing not included) CMC Triggers aftermarket trigger design for the Glock Pistol. Utilizing our Patented Signature Flat trigger design weve downsized the overall geometry to create an excellent fit in the Glock pistol. All the superior traits from the AR platform are replicated here in our aftermarket trigger for Glock design. 72001-NH