Just as a reference as everyone is always asking the same questions.
BLOCK 1
Other items not shown here, but commonly used during this period:
- EOTech 552 (instead of the Aimpoint Reflex shown above)
- Surefire M961A
- KAC M4QD
- LaRue BUIS
- KAC rail covers (the only ones)
BLOCK 2
The following was incremental (non permanent) and has been partially phased out in favor of what's seen in pic 2.
http://i301.photobucket.com/albums/n...d_block2-1.jpg
This is the current Block II kit.
Other items not shown here, but commonly used during this period:
- Docter sight with the SpecterDR
- AN/PEQ-16 (USMC only)
- KAC M4QD
- KAC flip-up front sight
- KAC 600m BUIS
- Grippod
Block II rifles will usually have the crane stock, however many retained the old lower (with the classic stock) but swapped the upper receiver group (as shown on the bottom left). This explanes why many have painted lowers, but unpainted uppers.