Installation, Gauging, Fitting, Tips, & Tuning of a 3 AR15 Fire Control Groups

3 Types FCG's Covered:
Geissele SSA-E
LaRue MBT
Factory Type

NOTE: We do not endorse or cover the Installation of AR15 Anti-Rotation/Anti-Walk Pins, AR15 Lightened Hammer Springs, or AR15 Cassette/Pack Triggers.



The Video is broken down into the following Chapters:

0:00:18 AR15 Fire Control Group Installation & Introduction
0:00:58 Unpacking the LaRue MBT & Geissele SSA-E
0:01:46 Hammer Spring Removal & Inspection
0:04:31 Trigger Spring Removal & Inspection
0:05:57 Driving the Hammer & Trigger Pins from the Hammer & Trigger
0:07:41 Magnetic Inspection
0:10:01 De-Magnetizing
0:10:49 Hammer & Trigger Pin Inspection
0:13:01 De-Greasing F.C.G. for Inspection & Gauging
0:15:58 Gauging the Hammer, Trigger, & Disconnector
0:18:59 Gauging the Lower Receiver Hammer & Trigger Bores
0:22:01 U.S. Military M16/M4 Taper Plug Gauges for Lower Receiver Hammer & Trigger Bores
0:25:06 Colt Large Pin (.169) Lower Receivers
0:26:02 Test Hammer & Trigger Pins for Proper Floating/Function
0:30:10 Lapping the Lower Receiver Hammer & Trigger Bores
0:32:45 Lapping the Hammer, Disconnect, & Trigger Bores
0:33:56 Inspecting the F.C.G. Pocket & Inspecting the Trigger/Hammer Stems for Binding
0:39:10 Selector/Safety Bore Gauging & Installation
0:42:05 Pistol Grip Screw Installation, Problems, & Fixes
0:50:31 Proper Hammer Spring Installation
0:53:00 LaRue MBT Trigger Installation & Preview of AR15 Lower Receiver Assembly Jigs/Fixtures
1:00:34 Installing LaRue Hammer with KNS Hammer Cage Tool
1:03:59 Pistol Grip Installation, Problems, Fixes, & Safety/Selector Tuning
1:16:15 Factory Type Fire Control Group Installation
1:17:52 Proper Disconnect Spring Installation
1:22:13 Geissele SSA-E Trigger Installation
1:25:36 Fire Control Group Function Test & Safety Check
1:31:28 Credits