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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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KWA Full Metal Magpul PTS MOE Furniture LM4 Airsoft Gas Blowback Rifle

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  1. 1. Buy Any Regular Priced Item
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$503.95Guaranteed Lowest
  • Model: M4
  • Muzzle Velocity: 400 FPS
  • Build Material: Metal
  • Weight: 7.76 lbs
  • Overall Length: 31" in. / 34.25" in.
  • Inner Barrel: 370 mm
  • Propellant: Green Gas
  • Magazine Capacity: 38 rounds
  • Color: Black
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  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 BagUniversal Tactical Sling

Upgrades and Add-Ons

Other AccessoriesScopes and OpticsTactical Foregrips
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  • Ratings & Reviews

Our Promise:  KWA airsoft guns are renowned for their world-class performance and exceptional build quality.  With an exceptional 45-day factory warranty and LIFETIME tech support offered directly through KWA, we feel most qualified to be YOUR premier KWA dealer.  In addition, you are guaranteed to pay the absolute LOWEST price on the market for your new KWA rifle, backed in writing by our industry-leading 125% Lowest Price Guarantee.

Our take:  This NEW KWA Magpul PTS LM4 PTR combines KWA's industry leading gas blowback rifle with modern ergonomic Magpul PTS furniture and a licensed Magpul lower receiver, making this rifle one of the most realistic and tactical looking GBBRs on the market. KWA’s NEW LM4 PTR (Professional Training Rifle) brings the realism of gas blowback airsoft rifles to a new level.  From its authentic design and construction to its realistic operations, the LM4 PTR is in a league of its own.  Faithfully mimicking real steel M4 operations, the KWA LM4 is perfect for real world training.  Not only does this gas blowback rifle operate nearly identically to a real steel M4, it also field strips (disassembles) just like a standard M4 carbine.  This makes it easy to clean and repair the LM4 PTR without the use of tools, which is especially helpful out in the field.

KWA has redeveloped their renowned NS2 system and made it compatible for larger scale gas blowback rifles. The new system, aptly named the “Force Velocity System”, gives the KWA LM4 PTR vastly superior power, recoil, and gas efficiency compared to other gas blowback airsoft rifle on the market.  These truly amazing gas blowback rifles are available in limited quantities, so pick up yours today and join in the evolution of airsoft!

The KWA Magpul PTS LM4 PTR design is modeled after the Magpul M4 MOE Carbine, featuring a unique Magpul licensed lower receiver and complete Magpul PTS MOE furniture. Crafted from CNC aluminum and designed to withstand real world training situations, this GBBR is the ultimate platform for realistic training scenarios.  The MOE stock, pistol grip, and hand guard are constructed of high grade impact resistant nylon polymer, and are made to nearly the same standards as real steel Magpul furniture.  This gives the Magpul PTS LM4 PTR a modern and ergonomic look and feel.  Additionally, the LM4 PTR features a top optics rail for attaching a variety of red dot sights and magnified scopes, and also includes a Magpul PTS rear MBUS sight.  The six position retractable MOE stock allows you to adjust the stock to your preferred shooting stance and makes the gas blowback rifle comfortable to shoulder. 

What really sets the KWA Magpul PTS LM4 PTR apart from other gas blowback rifles on the market is its hyper realistic feel and functionality.  Slapping the bolt catch sends the bolt home with a snap, closely copying the feel of a real M4 carbine.  Just like a real M4 carbine, the LM4 PTR stops firing once the magazine is empty, and locks the bolt to the rear.  This is perfect for real world training simulations, allowing you to train accurately with a high power premium airsoft rifle.  Also similar to a real M4 carbine is the trigger assembly and selector group, which only allows you to switch to “safe” after the bolt has been charged.  These extremely realistic functions, combined with a flawless authentic exterior, truly make the KWA LM4 PTR the best choice for tactical training and MILSIM airsoft players.

The KWA LM4 PTR utilizes the new “Force Velocity System”, which adapts and improves KWA’s renowned NS2 gas blowback system for larger, more powerful gas blowback rifles and sub-machine guns, giving them greater reliability and hard kicking recoil!  KWA’s “Force Velocity System” also greatly enhances gas efficiency, allowing you to fire up to three magazines worth of rounds from a single gas charge!  Firing the KWA LM4 PTR gas blowback rifle for the first time can startle you with its hyper realistic recoil, providing more kick than a buffer tube equipped .22LR rifle!  This enhanced recoil feature is perfect for airsoft players and professionals who want to train with a system that closely mimics the kick of a real firearm.

Unlike many other airsoft gas blowback M4 carbines, the KWA LM4 PTR features a robust full metal bolt, with a reinforced piston, and a full metal feeding lip!  What does this mean for the user?  It means that this bolt is built to withstand intense real world training simulations, and is much less prone to chip or wear over time!  With a high flow KWA patented piston and jet nozzle, this gas blowback carbine fires at an incredible velocity (380-420 FPS w/ 0.20g BB’s), with a realistic rate of fire.  The hop up system is very similar to KWA’s NS2 system, which can easily hit targets out to 170 feet using 0.30g BB’s.  This is perfect for airsoft players who are tired of airsoft guns with shorter range, and want to knock down targets at close to realistic ranges.  With re-engineered, enhanced, and reinforced internals, the KWA LM4 PTR is truly designed for professional training, and can easily handle the most intense airsoft combat!

Whether you are a military/ law enforcement professional or a weekend warrior, the LM4 PTR is designed to closely replicate the feel and functionality of a real M4 carbine, helping you train accurately for a fraction of the price of real steel training equipment.  This KWA LM4 PTR truly is the next step in the evolution of airsoft.  Don’t miss out on your opportunity to own one of the most game changing airsoft guns on the market!

- KWA Force Velocity Gas System
- Licensed Magpul PTS MOE Furniture
- Unique Magpul lower receiver
- Unique engraved serial number
- Magpul PTS GBBR 38rd Pmag
- Adjustable front and rear sights
- Full metal CNC aluminum upper and lower receiver
- CQB single point buffer tube sling mount
- Removable rear MBUS (Magpul Back-Up Sight)
- Top optics rail
- 6 position MOE collapsible stock
- Semi and Full Auto
- Adjustable Hop-Up
- 45 Days Product Warranty [US only]
- Lifetime Tech Support

Overall Length: 30.94" in; 34.25" in. (retracted/ extended)
Outer Barrel Length: 15" in.
Inner Barrel Length: 370mm
Inner Barrel Diameter: 6.05mm
Weight: 5.84 lbs; 7.76 lbs (without magazine/ with magazine)
Barrel Thread: 14mm CCW (Counter Clockwise)
Caliber: 6mm Plastic Airsoft BB
Magazine Capacity: 38 rounds (DO NOT OVERLOAD MAGAZINE)
Rate of Fire: 13+ RPS (Rounds Per Second)
Velocity: 370-400 FPS (w/ 0.20g BBs)
Energy Output: 1.2 Joules
Gas System: FV (Force Velocity)

* Orange tip flash hiders are required for all US sales or where applicable by law.
** Individual test results may vary depending on brand of bbs, and chronograph used.

NOTE:  DO NOT USE PROPANE, RED GAS, or HFC 134a Gas with this KWA product. Using propane with this KWA Gas Blowback will void the manufacturer's warranty, and can cause irreparable damage to the rifle.

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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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