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G&P M4A1

My primary airsoftgun is a G&P M4A1 with marine markings.
The replica was bought through RedWolfAirsoft back in December 2009, when they had their line of cheap G&P guns. The gun came with plastic handguard, plastic grip and plastic stock; everything else was metal (except some internal parts like the piston). Later the gun has been upgraded both externally and internally.


External upgrades
CA RIS system
Flip up iron sight
Rubber pad on the stock
RIS covers from Dboys, which is one rib too short
Modified stock tube the prevents the stock from collapsing all the way in
Frontgrip

Internal upgrades
Modify BU cylinder
Modify BU cylinder head
Modify BU nozzle
Modify BU pistonhead
Modify rotary springguide
PDI 190% spring
SHS piston
SHS 18:1 gear
Guarder Hopup rubber
Element H-roll
JG High Torque motor
Deans connectors
 
Batteries
1x 11.1 V 1200 mAh LiPo battery (primary)
2x 7.4 V 1200 mAh LiPo batteries (Not in use, but keep them with me just in case and for lending)

Accessories and others
Red dot sight, ACOG style
Wolfeyes 6AX 260 lumens flashlight
7x G&P 80 round mags
3x Magpuls 

 

Most of the internal parts where installed in late June 2010 and the velocity ended around 130 m/s which is about 420 fps, and with the 11.1 V battery the ROF is approximately 22 rps (according to Audacity).
And the flashlight actually serves a purpose, the field I play on is a tilework and they have a huge kiln/furnace/oven with no light at all.