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Weapon Shield 90

  • EXTENDED Industry Leading 90 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance
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Weapon Shield Extended 135

  • TRIPLE EXTENDED Industry Leading 135 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance

+ Tech Inspection

  • FPS Chronograph Certification
  • Gearbox Cleaning
  • Gearbox Lubrication
  • Fuse Replacement
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AMS Standard 45

  • Industry Leading 45 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Standard processing time, 1-2 business days

AMS Proshop Warranty Options

Airsoft Megastore is proud offer our customers the most comprehensive warranty options in the industry. Orders are processed within our standard 1-2 business days from the date of purchase and shipped out with your selected shipping method (chosen at checkout). All accessories and upgrade parts are shipped within their manufacturer's packaging, to best protect each part during shipping. Upon arrival, the player will need to easily attach their own parts. Please be careful not to void your warranty by opening your gearbox, or damaging any of the accessories, as they are not covered under any warranty.

We suggest that anyone investing in a gun from our custom proshop purchase a weapon shield protection plan. There's no sense in spending your hard earned cash on something this awesome and then be at the mercy of the manufacturer's limited parts warranty. Purchase a weapon shield plan, 90 or 135 day plans to protect your airsoft investment. Our 135 day plan includes an inhouse tech service that you have 135 days to use. Our techs will do a clean up that should keep your airsoft investment running like the day you got it. All Weapon shield customers are prioritized for order processing as well as other services. Join the our satisfied Weapon Shield customers today!

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Elite Force Red Jacket KMP Basic Full Metal M4 Airsoft AEG Rifle

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  • Model: M4
  • Muzzle Velocity: 390 FPS
  • Build Material: Metal
  • Weight: 5.6 lbs
  • Overall Length: 30.25" in. / 33.5" in.
  • Inner Barrel: 375 mm
  • Battery Type: 8.4V Mini
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black
customize it!


3 Ways to get Free Shipping

  1. 1. Buy Any Regular Priced Item
  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
Free ShippingThis item qualifies for Free Shipping

Must Haves

BB CombosBBsExtra MagazinesFace & Eye ProtectionGun BagPremium BatteriesSmart Charger for AEGsUniversal Tactical Sling

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  • Details
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Our take:  If you’re looking for a highly dependable M4 to take out on the field, you simply can’t go wrong with Elite Force’s take on the KMP Basic.  This M4-style AEG, which is fully licensed by the firearm manufacturer Red Jacket, features a full metal body that sports Red Jacket's official emblem, making it extremely rugged.  Though this AEG’s seamless design makes it an ideal choice for all players, it’s also a perfect AEG for customization.   From aftermarket stocks to drop-in handguards, this AEG is compatible with most M4 airsoft furniture.  It also has a full metal, flat top receiver for scopes, sights and other optics.  The KMP Basic AEG offers the perfect blend between ruggedness and respectable performance.  Take it to the field and see for yourself!

- Officially licensed by Red Jacket
- Full metal body (upper/lower receiver, barrel, buffer tube)
- Full metal Version 2 gearbox
- 6-position retractable LE stock
- Adjustable hop-up system
- Triangle sight w/ flat top receiver
- Front and rear sling mounts
- Metal flat top receiver
- Compatible with Version 2 parts
- Shoots up to 390 FPS (w/ 0.20g BBs)

Operation:  Electric Automatic
Build:  Metal Upper & Lower Receiver, Outer Barrel, Buffer Tube, Rail / Polymer Stock, Grip
Firing Modes:  Semi-automatic and Full-automatic, w/ Functional Safety
Muzzle Velocity:  370-395 FPS (w/ 0.20g BBs)
Gearbox:  Full Metal Version 2
Magazine:  300rd High Capacity (gear wind-up)
Battery:  8.4V Mini (not included)
Inner Barrel Length:  375 mm
Inner Barrel Diameter:  6.04 mm
Hop-Up:  Adjustable
Weight:  5.6 pounds
Overall Length:  30.25" in. / 33.5" in. (Retracted / Extended)

Ammo type:  Seamless 0.20g or heavier (0.23g, 0.25g, 0.26g, 0.28g, etc) BBs.  For maximum performance and accuracy, Airsoft Megastore recommends GoldenBall ProSlick BBs which carry perfect spherical consistency and density, available at Airsoft Megastore for the lowest price on the market, guaranteed.

Package includes:  Rifle, hi-cap magazine, cleaning rod, instruction manual

Color:  BLACK

GUN FORGE - Custom Built by AMS Customers

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Product Reviews

4 Elite Force Red Jacket KMP Basic Full Metal M4 Airsoft AEG Rifle *****
solid first gun

"The gun is very nice it is a sterdy metal receiver it has good polymer furniture but the front sight is non removable so you will have to get high mounting rings for your optic of choice other than that i recommend this gun"

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The store is amazing. I have found there items that I could not find in other stores which makes it the best. I have made questions and inquires about products and the customer service has responded super fast with accurate answers. All my products have arrived in excellent conditions in spite of other stores. My last product came late because it was rescheduled but that was UPS fault I think. I would like to thank Matthew for his exceptional customer service. Whenever you need help, please try to contact him. My advice, buy in Airsoft Megastore, they have coupons and the widest variety of airsoft products. RandyLoy, USA
I ordered a gun sling a couple weeks ago. Unfortunately, one of the clips broke. After a few email correspondings with a customer service representative named Jun (my emails did not show a last name), AMS sent me a replacement sling for free. I did not even have to send my clip back. AMS is a terrific store and I plan on doing more business with them. They were polite, efficient, and just a pleasure to work with. I would recommend Airsoft Megastore to anyone. mskanwischer, USA
Airsoft Megastore is The Best Airsoft Website Out There (I Think) and i Will Always Be Loyal to AMS and Order Almost All of my Gear From Them. The Customer Service is Also Amazing, Jun my Customer Service Representative Has Helped Me With Anything i Needed Help With, Especially My Order Problem (Had 2 Magazines Missing from Order) and Jun Helped Me With The Problem, and Now The Mags Have Been Shipped To Me. Thank You So Much AMS and Jun. Ethan1214, Saskatchewan, Canada
I love that Airsoft Megastore has videos of most any information you will need to learn and care for your products. I purchased an AEG for my son and in short order, unfortunately, it began grinding after brief use. I emailed for warranty repair with symptoms and with 24 hours (22 to be exact) I received an email explaining possible causes with a video like for tuning the gun. I had the gun working again within 15 minutes, avoiding returning the gun and the mess associated with returns\repairs. Excellence on Sean's part to help out a first time customer of theirs. Highly recommend. bucfanjeff, USA
Everything worked great, shipping was super fast. I am very pleased and won't hesitate to order through airsoft megastore again. rob_riley, USA
I loved buying from airsoft megastore because the employees helped me recover my tracking number and told me where the package was at, I would love to buy from airsoft megastore again! Battlefield4Rule, USA
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