I've recently shot approx. 10,000 rounds of 5.56mm NATO through my Daniel Defense M4A1. Here are my thoughts. Although the internals are stock/basic milspec parts, I've changed some of the outside furniture so it resembles an M4A1 Block II rifle.
Optic: Aimpoint Comp M4S
Upper/Lower Receivers: Daniel Defense
Rail: RIS II (Picatinny)
Barrel Length: 14.5" (before muzzle device)
Bolt Carrier Group: Daniel Defense phosphate-coated BCG
00:00 - 00:41: Intro
00:41 - 01:24: Video Format
01:24 - 02:16: Summary
02:16 - 03:21: Background on this M4A1
03:21 - 04:06: My Understanding of DD's Perception
04:06 - 06:28: Performance & Accuracy
06:28 - 10:13: Durability & Reliability
10:13 - 12:22: What I Like
12:22 -14:41: What I Don't Like
14:41 - 16:28: Summary
