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

SKU: KWA-103-00201 KWAIn Stock Map ProtectedPrice is map protected. Coupon(s) may not be applied to this item.

  • 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


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

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.

Internals: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.

About KWA: Established in 1988, KWA has been the leading designer and manufacturer of airsoft replica weapons for law enforcement and military training. Its reputation for quality, performance, and reliability makes KWA a recognized leader in professional airsoft products. In a time when airsoft development is focused on external replications and logos, KWA has been advancing airsoft technologies with the introduction of the NS2 Gas Blowback System and the 2GX Mechbox. Both product advancements increase the overall performance and reliability beyond all conventional standards of the industry. These products represent KWA’s commitment to excellence and passion for engineering products that simply outperform. KWA’s state-of-the-art manufacturing facility is located in Taiwan with an independent sales and distribution operation in the United States that services the Americas and all European Regions. KWA AEGs 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

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.

In the Box


Hop-Up Adjustable

California Proposition 65 Warning: Cancer and Reproductive Harm -

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