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Weapon Shield 90

  • EXTENDED Industry Leading 90 Day parts and defects warranty
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Weapon Shield Extended 135

  • TRIPLE EXTENDED Industry Leading 135 Day parts and defects warranty
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  • Standard processing time, 1-2 business days

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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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ASG Licensed STI International Duty One 1911 Blowback CO2 Pistol

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  • Model: M1911
  • Muzzle Velocity: 400 FPS
  • Build Material: Metal Slide, Polymer Frame
  • Weight: 1.6 lbs
  • Overall Length: 9" in.
  • Propellant: CO2
  • Magazine Capacity: 16 rounds
  • Color: Black
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  3. 3. or, Any Order Over $150
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Our take:  The NEW Duty One 1911 CO2 Pistol is ASG's accurate take on one of STI International's most popular pistol models, which have gone through an extensive evolution and morphed these classic pistols into modern sidearms.  From the hammer all the way to the rail system, this pistol is built to look and feel like an STI pistol.  As with the real steel version, reliability ranks high on its list as well as aesthetics.

Modeled off a government size frame, this licensed Duty One series pistol measures 9 inches long and features STI's innovative Picatinny rail system, which can accept most industry flashlights and laser units.  This blowback pistol is built using standard 1911 specs but also includes a commander style hammer, separating this model from most older M1911 pistols on the market.  Coupled with its checkered pistol grip and high-rise beavertail safety grip, which prevents slide bite, the Duty One replica provides excellent hold and is a fine choice that keeps ergonomics in mind — and shooting well into 400-FPS territory helps as well.  This designates it as an exceptional pistol for law enforcement training scenarios as it will also fit into standard M1911 holsters and comes integrated with fixed iron sights.

The Duty One CO2 pistol by ASG is engraved with STI International's official trademarks and unique serial number etched onto the full metal slide, adding a final touch of authenticity.  The frame is constructed out of nylon polymer, which not only helps reduce weight but makes it extremely durable.  Single sided thumb safety and an easy-open CO2 compartment only adds onto the list of what qualifies this licensed model to be a must-have.  Anyone looking into picking up a reliable blowback pistol with real steel licensing and hard-hitting specs will find the STI Duty One 1911 CO2 pistol to be perfect.

- Official STI International logo and trademarks
- Innovative STI Picatinny rail system
- Serrated metal slide
- Commander style hammer
- Fixed iron sights
- Functional slide stop
- High rise beavertail safety grip
- Government size frame
- Easy access CO2 compartment

Operation:  CO2 Blowback
Build:  Metal Slide, Hammer, Trigger / Polymer Frame
Firing Modes:  Semi-automatic
Muzzle Velocity:  400-430 FPS (w/ 0.20g BBs)
Propellant:  CO2
Weight:  1.6 pounds
Overall Length:  9" in.

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:  CO2 pistol, magazine, Allen key, instruction manual

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Product Reviews

4 ASG Licensed STI International Duty One 1911 Blowback CO2 Pistol *****
The best


Hello Air gunners, both airsoft & .177 steel.
I have this pistol in the airsoft versions and use it for target shooting only .
This is by far the most under rated air pistol on the market in the 1911 configuration but I think it is the best and most dependable pistol I own in the airsoft version.
It will except any co2 cartridge made without difficulty of insertion or extraction , or leaks and I fire .30 gram aluminum 6 mm. bbs and they chrony in 75 deg.f. at almost 380 f.p.s. with 3 sec. wait between trigger pull. using the .30 gr  6mm. aluminum bbs. and I use them
with this gun only , because it operates the same as most bb guns ( 4.5 mm.) because the stick mag and co2 compartment are separate.
I do not have to worry about a damaged nozzle, or any other internals used in the all in one mag,
 the fit in the hand is almost like it is one with the shooter accuracy is outstanding ,once you learn how to use the front blade to rear notch.
The trigger can be used as 2 stage without double bb feed and silencers are also available for this pistol at certain air gun outlets.
The reason I gave 4 stars is extra mags are hard to find if you can find them at all.
I But all in all if you want good power and accuracy at  the park this is a good,good, side arm.
Thanks for reading
Your Friend in air guns
Kevin Neel




We are very happy to hear that you are enjoying the product! Every awesome pistol should be accompanied by an awesome holster, check out the AMA Airsoft Universal Drop Leg WrapLock Pistol Holster - BLACK and AMA Hard Shell Polymer Quick Draw P226 Holster - BLACK!

KWA LM4 PTR Airsoft M4A1 GBBR Gas Blowback Open Bolt Training Rifle - See more at:

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