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Pre-Order ETA June 2017 A&K M4 GR-300 Carbine NS15 Full Metal Airsoft AEG - Long

ID: 30324 (AEG-AK-G300-L)
4.5 stars, based on 24 reviews
Pre-Order ETA June 2017 A&K M4 GR-300 Carbine NS15 Full Metal Airsoft AEG - Long
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$235.00 $176.25

CanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.

No Payments + No Interest if paid in full in 6 months through PayPal Credit. Simply check out using PayPal and select PayPal Credit!

This is a pre-order item with an ETA (estimated arrival) of June 2017

A pre-order item is an up coming new product, or an item in the process of being restocked to the platform by it's manufacturer.By pre-ordering an item, you will have reserved the inventory availability to receive it before the goods arrive. All pre-order items are eligible for a full refund at any time during the waiting period; simply call or drop us an email with the order # and the pre-order item you would like to cancel for an immediate refund. Due to circumstances such as US customs inspection, factory delays and other situations out of our control, all ETAs (estimated time of arrival) are estimated to our best ability and are subject to change.

A&K has long been a player in the Airsoft AEG market and now they are poised to tackle an even larger segment of the market with their new NS15 series of AEGS. A&Ks NS15 series of Airsoft AEGs takes their already popular line up and modifies them in the factory with some of the most popular upgrades around. Internally the A&K gearboxes now feature a quick change spring system, which allows the user to modify the FPS of the gun easily and without having to disassemble the entirety of the gearbox. A&K replaced the standard 6mm gearbox bearings used in their previous gearboxes with the larger, more durable and efficient 8mm bearings as well as reinforcing the gearbox shell itself. All of these upgrades, now made standard improve the durability and reliability of A&Ks NS15 system and allow for the use of LiPo batteries up to 11.1V.


  • A&K NS15 gearbox
  • CNC finished receiver and outer barrel
  • Matte black finish
  • Ergonomic motor grip
  • 8mm bearing gearbox
  • Quick change spring guide
  • Detachable rear sight
  • Folding Stock
  • Polymer handguard
Length: 800mm, Full length
Weight: 10 pounds
Inner Barrel: ~400mm
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.

FPS Range: 370-400

24 Customer Reviews

(Write a review)

by Jerem M. on 04/21/2016
"Great gun. It has a LOT of power, and is extremely accurate. I can hit a thin-link chain with it from 30+ yards away. I heard that A&K used to have bad interiors, but that does not apply to the GR-300. The gearbox is well-built. The entire gun is made almost exclusively out of metal, which makes it very sturdy and well-balanced. The mag locks tightly into place, with no rattle at all (at least on mine). The only cons to this gun are the plastic handgrip, which feels cheap compared to the rest of it, and the fact that the paint scratches off easily, especially from the magazine. Also, the M120 spring requires a lot of power to pull back, Which makes the RPM rather unimpressive (around 600-rounds-per-minute), as well as rendering you with a short battery life. So I would suggest investing in a high-quality battery if you buy this, at least a 9.6V Ni-MH, but an 11.1 V Li-Po works best. Definitely recommended.
by Andrew S. on 04/01/2016
"Only giving it 4/5 for now until it's field tested tomorrow on G&G day at Ballahack. First thinks fist, the inner barrel is not 400mm, it is more like 330mm inner barrel stock. Mine came with a 9.6v small brick type battery, and I purchased an Intellect 9.6v nunchuck style battery, both of which fit very well, however the nunchuck style fits better due to the fact it is more flexible. Another thing to point out, as I plugged both batteries into my smart charger, said both had a full charge but t they barely cycle the motor. At first I thought I got a bad gun, but just to check I homed up one of my AK (known good) batteries, and Pew-pew she went. Anyways plugged both new batts into a wall charger for a couple hrs each and both work well. So I did a couple mods to this guy out the box: a 407mm TB barrel, a Modify hop-up unit; H-hop bucking nub, and a Madbull 60 degree red bucking. Pro needs the break-in a bit, but it has pretty decent range and laser like accuracy with my lancer Tac red dot out to 60ft. G&P high RPD mags feed flawlessly until you get to the last 3-4 bb's (wish I could buy the G&G magfollowers after market). The high cap that comes with it doesn't fit great but it does fit and lock into place. The folding stock is awesome quality, locks solid AF to the rear, however it flops around when folded to the side, no matter as I will still be marking fools with it. The sights are cool,although this could be a bad apple my rear sight is perma-canted.....tried making a spacer but to no avail, she Lea s to the left, but as firemen ruined I have that red dot😉. Oh yeah 407mm barrel fits like a glove, right to the end of the flash hider, and this thing has a metal hop-up unit in it stock, although looking at it the bucking barely gets any adjustment off if whatever is in there. Anyways I'm happy with my purchase, hope this review was helpful to y'all, it as a bday present to my self and picked it up from the epic deals, which was $160 like a minute ago.
by Grant B. on 12/24/2015
"This Weapon is amazing! I Just received it yesterday and I was surprised to feel how heavy this gun was.I liked it. The battery fits perfectly in the chamber. It has a little rattle with the magazine, but that's all that's bad about this Weapon. It hurts when you get shot from close range, so you probably may want to get a pistol or lower FPS Weapon. In all this Gun is AMAZING! Great buy for 185.00. Recommended.

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This is a pre-order item.

Pre-order estimated arrival: June 2017

By adding a pre-order item to your shopping cart, you will guarantee yourself to have the item reserved before they are offered as an in-stock item. Often, you will also save on shipping while not risking a rate item being sold out before you have a chance to buy it. Being the largest Airsoft distributor in the America continent, is the gateway for many exciting items entering the Airsoft world. All pre-order items are tagged with our best estimate on arrival times factoring in manufacture delay, us custom examinations and other factorys to the best of our ability. The goods on pre-order generally arrive before they are past due or on-time 99% of the time. All pre-order items are processed subject to item availability on a first-come, first serve basis. All orders and payments are processed at the time of payment. Buyer reserve the rights to a full refund on any pending pre-order items at any time.

This item is currently Out of Stock. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.