A&K M4 GR-300 Carbine Full Metal Airsoft AEG - Short

4.8 stars, based on 12 reviews

$230.00 $179.00

ID: 30624 (AEG-AK-G300-S)
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.

12 Customer Reviews

by Mason B. on 02/03/2016
"Had this gun for 2 years now and it has worked great! easy to tune up and has a wide space for a battery. Only downfall is it does not come with rails. still a great and accurate gun
by Aris G. on 09/08/2015
"so far its great I almost would say I got the best rifle for beginners its really good
by Demetrius J. on 08/23/2015
"I've had this gun for a little while, but I'm no stranger to A&K guns. Firstly the externals on this gun are great. Very solid, with zero wobble. The stock is great as well, the only issue I've seen is the ring that goes around the buffer tube can get loose causing the stock to wobble. If you use the provided tool to tighten it, the stock stays put. The front handguard is a different story. When I bought it it was super wobbly, and made the plastic feel super thin and cheap, but I put some duct tape around the base that it sits over, and voila, it's solid and feels really sturdy and strong. To remove it, stick your finger or a small object into one of the holes in the top portion of the handguard and pull down and rotate to remove it, and it'll come off perfectly every time.

The internals aren't bad individually, but the stock performance wasn't great. Though with a little TLC I have the gun shooting very well. First was the spring, it was shooting 420fps out of the box. Next was the hopup, the dial didn't rotate very well and the nub was either too soft, or didn't contact the bucking at all. Thirdly was a shim job, but that's preference I guess, because I like to run 11.1 lipo's. Otherwise the gun is completely stock, and it gets out to 150-180 feet consistently with just a change of hop-up chamber and nub.

Overall I'm very happy with my purchase. For the price, some issues were expected, and were luckily very quickly rectified. If you want a gun that'll perform very good out of the box, I'd suggest another model, or brand. As A&K seems to be on the lower spectrum in terms of performance, but for the price, and what you can upgrade immediately without breaking the bank, these guns are very attractive.

Solid Externals
Crisp Trigger Response/ROF Stock
Folding Stock
Space for Nun-Chuck/Butterfly Batteries

Shoots too hot (420fps)
Stock Hop-Up
A&K M4 GR-300 Carbine Full Metal Airsoft AEG - Short

A&K M4 GR-300 Carbine Full Metal Airsoft AEG - Short


  • Full Metal Receiver
  • Side folding stock
  • 20mm flat top rail receiver
  • Ventilated style gas tube
  • Adjustable front and rear sight
  • Removable rear sight
  • Front and rear QD sling points
Length: 740mm, Full length
Weight: 10 pounds
Inner Barrel: ~363mm
Magazine Capacity: 450rd Hi-Capacity. Works with Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 370~400 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgradeable
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 9.6v Small Butterfly Type recommended (Battery not included. Wired to front with Tamiya connector)
Hopup: Yes, Adjustable
Package Includes: Gun, Magazine, Manual


Things you may need to get started:
    Battery and Charger Required to power your AEG; use a high quality battery and charger for best results.

    Spare Magazines Stay in the fight longer by bringing more ammo with you.

    BBs High quality precision 6mm BBs recommended; Use 0.20g 0.25g BBs for best results.

    Silicone Oil Basic cleaning and lubrication maintenance help keep your Airsoft AEG in top working order.

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