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Weapon Shield 90

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Weapon Shield Extended 135

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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 LM4 PTR Airsoft M4A1 GBBR Gas Blowback Open Bolt Training Rifle

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$379.95Guaranteed Lowest
  • Model: M4
  • Muzzle Velocity: 400 FPS
  • Build Material: Metal Receiver, Outer Barrel
  • Weight: 7.5 lbs
  • Overall Length: 33" in.
  • Inner Barrel: 363 mm
  • Propellant: Green Gas
  • Magazine Capacity: 38 rounds
  • Color: Black
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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:  NEW LM4 PTR (Professional Training Rifle) is the most realistic airsoft gun on the market, featuring a nearly identical design to a real M4A1 carbine.  From its authentic design 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 an M4.  This makes it easy to clean and repair the LM4 PTR without the use of tools, which is especially helpful out on the field.

KWA has redeveloped their renowned NS2 system and made it compatible for larger scale gas blowback rifles. The new system, aptly named “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!

External Design
KWA’s LM4 PTR is crafted from high grade aluminum and steel, with polymer furniture, giving it a nearly identical look and feel to a real AR-15 carbine. The LE stock, pistol grip, and hand guard are constructed of high grade impact resistant nylon polymer, just like a real M4 carbine, giving the LM4 PTR a truly authentic look and feel.  Additionally, the LM4 PTR’s carry handle can be removed to expose a top optics rail for attaching a variety of red dot sights and magnified scopes.  

Not only does this airsoft carbine look the same as a standard M4A1, it also functions remarkably similar to an M4.  The bolt carrier group of the KWA LM4 looks very similar to a real M4 bolt, and reciprocates with each shot. Pressing the bolt catch sends the gas 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 as much kick as 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 (380-410 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! As a side note, Airsoft Megastore recommends using King Arms Green Gas for this KWA gas blowback rifle.

- KWA Force Velocity Gas System
- Adjustable front and rear sights
- Full metal CNC aluminum upper and lower reciever
- CQB single point sling mount for tactical 1-point rifle slings
- Removable carry handle
- Top optics rail
- 6 position LE collapsible stock
- Semi and Full Auto
- Adjustable Hop-Up
- 45 Days Product Warranty [US only]
- Lifetime Tech Support

- Overall Length [Retracted/Extended] = 30.94"/34.25" [78.6cm/87cm]
- Outter Barrel Length = 381mm
- Barrel thread = 14mm* [Counter clock wise]
- Inner Barrel Length = 370mm
- Inner Barrel Diameter = 6.05mm
- Hop-Up: Adjustable
- Magazine Capacity = 38 Rounds Green Gas magazine included
- Caliber = 6mm Airsoft BB
- Velocity = 384-402 FPS** with .20 gram BB's
- Rate of Fire = 13-15 RPS**
- Power = Green Gas

* 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.

KWA LM4 PTR Airsoft M4A1 GBBR Gas Blowback Open Bolt Training Rifle Categories:

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***** 4 / 5
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Product Reviews

4 KWA LM4 PTR Airsoft M4A1 GBBR Gas Blowback Open Bolt Training Rifle *****

"PROS: long range extremly realistic field strips(I can do it in about 10sec.) great power intimidating recoil! its KWA cool metal orange tip extremly solid full metal easily upgraded with MAGPUL! good accuracy reliable good gas efficency CONS: low ammo cappacity(but it is realistic so....) some bbs will stray from target takes awhile to load clip extra clips=$50 I had some problems with the clip, but that might be from using propane price All in all awesome gun!"

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4 KWA LM4 PTR Airsoft M4A1 GBBR Gas Blowback Open Bolt Training Rifle *****
Well built

"this rifle is totally worth the price, in my opinion it could easily cost about $500... it is really built for long lasting rifle cuz of its most internals are metal which means it could take a beating, "well not physically" anyways it is flawles from the inside n out!!! Mostly metal but the hand grip n stock which i dont think its necesary to be metal thats more than a real m4, seriously get this gun if u got the money... The only problem that i dont like about this gun is that when u adjust the hop up it could be easily damged, you'll see what i mean once u own it or watch the videos for it..."

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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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