G&G Top Tech GR16 R5 M16 SPR Type Blowback Airsoft AEG Rifle - (Package: Add 8.4v 1600mAh Battery + Charger + BBs)

"What is the difference from this, and the $260 G&G GR16 A3?

"i bought this gun a few months ago. over all a pretty solid gun exept for a few cheap plastic pieces. i played with it like that for a while but then wanted more power, speed, and accuracy. so i gutted it. here's my setup:
matrix m150 lipoly ready gearbox
systema magnum motor
g&p metal hopup
prometheus 509mm inner barrel
11.1 4000mah lipoly battery
and had to buy g&p widow maker body (gearbox wouldn't fit in g&g body)
this gun shoots consistantly between 495fps and 505fps and the rof is insane. not to mention i can hit my targets at well over 200ft if i want to.

"Having owned several G&G guns, I must say the quality of this one has met my expectations for the company. However, unlike in the description, this rifle does NOT feature a pneumatic blow back system. This is not such a big deal, but it is confusing as to why the description says it does. It comes standard with a brass inner barrel, and a Top Tech gear V2 gearbox, just no blowback. The Fire Selector is solid, and has a nice click, with the realistic engravings on both sides of the lower receiver. It's solidly built, and unlike most M16 A2's the front sight and hand guards do not wobble what so ever. Everything that can be metal on the weapon is. And the hop up system is stellar, it is easily pushing 250 feet out of the box if you tweek the hop-up just right. Over all its a solid buy for the range it has, but the rate of fire brings the overall experience down.

PROS:
-Metal/Very durable
-VERY long range
-LOTS of battery storage (most I've seen from G&G)
-Fire Selector feels and looks good
-Weighted well, Front end assembly is balanced with stock

CONS
-Low ROF with a 9.6 1600 mAh
-Over all length (bad for CQB good for outdoor)
-NO RAILS (this is an A2 the carrying handle does NOT come off)
-forward assist and charging handle do nothing (takes from realism)