Contact Us Tel:(626) 286-0360 Store Locations
Phone Support M-F 7am-5pm PST
Browse by Type or Category
Biggest Memorial Weekend SALE!! See EPIC deals, MAP brands on sale or save with coupon code: MEMORIAL2023 (exclusions apply)

PTS Mega Arms Licensed MKM LM4 GBB Gas Blowblack Rifle

ID: 45913 (GR-PTS-MA-MKM)
4.6 stars, based on 5 reviews
PTS Mega Arms Licensed MKM LM4 GBB Gas Blowblack Rifle
Hover or touch above to zoom
Youtube preview Product image 1 Product image 2 Product image 3 Product image 4 Product image 5 Product image 6 Product image 7 Product image 8 Play Youtube videoPlay Youtube videoPlay Youtube video


This item is currently Sold Out

MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
Free ShippingNo Coupon Required
Free shipping within lower 48 US states, no coupon code needed!


  • Fully licensed aluminum alloy Mega Arms upper and lower receiver
  • 12" ultra-light keymod handguard is ideal for accessory integration
  • 15" aluminum alloy outer barrel
  • PTS EPS adjustable stock with storage compartments
  • PTS EPG with improved ergonomics and aggressive texturing
  • KWA / KSC gas system
  • PTS EP magazine

FPS Range: 390-410

Following the same superb quality as the real rifles this was modeled off of, the PTS Mega Arms Licensed MKM featuring the LM4 gas system is an outstanding training rifle with fit and finish that mere words cannot fully describe.

Featuring a clean and custom look, this rifle not only stands out aesthetically, but also has the performance to back up its sleek look. The Keymod accessory rail runs down the length of the barrel, allowing Picatinny Keymod sections to be added as necessary to cut down on weight. The lower receiver features an enlarged trigger guard machined into the receiver itself for added strength.

The proven efficiency and reliability of the LM4 gas system is at the heart of this rifle. Both high power and gas efficient, the LM4 gas system offers one of the most realistic gas blowback actions in the airsoft industry.

Length: 775mm-860mm, Adjustable
Weight: 2860g
Inner Barrel: 370mm, 6.05mm
Magazine Capacity: 40rds
Muzzle Velocity: 390~410 FPS (Measured with 0.20g BBs and Green Gas)
Thread Direction: 14mm Negative
Gas Type: Green Gas
Fire Modes: Semi/Full-Auto, Safety
Package Includes: Gun, Magazine, Manual
Hopup: Yes, Adjustable

Manufacturer: PTS

About PTS

When it comes to training, simulation, and the ultimate experience, theres PTS and then theres everyone else. With RDT&E (Research, Development, Test & Evaluation) Teams in both USA and Asia and using the best materials and manufacturing processes, PTS Syndicate is committed to bringing the highest quality and most innovative products onto the market to meet and exceed the exacting standards of the most discriminating end user. PTS is also a prolific exclusive licensee of the latest and greatest products in the tactical market. We have an excellent reputation as a trusted license partner that works closely with our licensors to extend awareness of their brands into a new market space.

About KWA

Established in 1988, KWA has been the leadingdesigner 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 KWAs commitment to excellence and passion for engineering products that simply outperform.KWAs 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.

5 Customer Reviews

(Write a review)

by Jonathan L. on 02/16/2022
"I have this gun right out of the box it missfed like crazy do to 6mm pro shops feed lips on there 500fps mags ,thatz sense beenResolved ,by putting.esd maple leaf single feed lm4 lips on the mags thicker lips way better feed hasn't death fed yet and thats why it was only on the field part time.but now its a fuckin monster with 500fps mags tnt barrel and hop lighter r tracer unit bcm pArts all over it and it shoots insane distance with .32s at the field i re comend this gun after moding its loose ends speaking of loose lock tight everything including the buffer tube stop pin it screws through the grip i even put a holsun 403b amd a magpul bad lever after filing about 3mm off the back side of the bolt catch many mods ,not alot of parts but is well worth the cool recoil and heavy medal clangs that you'll get from your lm4 something a WE or GHK can't imitate very well .there just cool horrible paint and tacky grey dust cover but i got that ultimate dust cover on there and its gonna get fielded as much as i can bring it to play .i am a cyma bAMF aeg guy but i love my umerexglock17gen 4 and my ptsmkmkwalm4gbbr my 3 favorits and i have thousands in all 3
by cody f. on 03/24/2019
"I couldnt be happier with this purchase! I already ahve the kwa lm4 and this was an amazing upgrade from the lm4 its built way more solid and the best part is everything is interchangeable between both of the guns because they are based off the same ns2 system? If you are debaiting on this or the lm4 i highly suggest spending the extra money on the pts version you wont regret it!
by trent a. on 06/07/2015
"I own both this gun and the regular lm4, and internals are basically identical. However, the externals are a MAJOR upgrade, the longer barrel is more accurate, a long keymod ris for a ton of attachments, upper and lower feel more ergonomic, top rail can fit a car, crane stock makes it easier to aim. On this one, for some reasom, the bolt catch was actually reliable. BUT DO NOT TRUST IT WHILE ADJUSTING YOUR HOP UP!!!!!!!!!!!!! it can lead to a total of 250$ dollars in damage, it happened to one of my buddies.

nice weight
no wobble
upgrade from normal lm4( IMO )
realistic to real ar15
long upper rail
nice keymod rail
lots of space for attachments
crane stock is comfortable
nice clicks and sounds when using the gun
comes with detachable irons
hop up is very strong(can be con)
real trigger grouping
function while sideway and/or cold

price of mags
gas guzzler
crane stock is impossible to aim with mask on.
price tag in comparison to normal lm4

over all a great buy and is definitely worth it.

Comments & Community

Discuss about PTS Mega Arms Licensed MKM LM4 GBB Gas Blowblack Rifle with your friends and fellow shoppers!

Have an urgent question about this item? Contact us, our resident experts are standing by to answer your questions!

California Proposition 65 Warning: Cancer and Reproductive Harm -

This item is currently Sold Out. 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.

Customers who bought this also purchased

Parts and accessories may not be compatible with the product displayed on this page. For compatible parts/accessories, see the You May Also Need section and please verify details on the product description page.

Search tags for related products