High Speed BBs

  • Home
  • Real Steel
    • AR-15 Builder
    • About AR-15 Suppressors
    • Suppressor Covers
  • Learn About Airsoft
    • Airsoft Guns
    • How Airsoft Guns Work
    • Airsoft Pistols
    • Airsoft BBs
    • Rifle Scopes
    • Tactical Hand Signals
    • Airsoft Snipers
    • Fix Airsoft Guns
    • Game Rules
    • Airsoft Glossary
    • Play Airsoft
      • Find Airsoft Fields Nearby
      • Best Places to Play Airsoft
      • Top Stores
      • Store Finder
        • States & Cities
        • Store Reviews
      • Field Finder
  • Gun Reviews
    • Best Airsoft Sniper Rifles
    • The Coolest Airsoft Guns
    • Best Glock Pistols
    • Top Airsoft CO2 Pistols
    • Best KWA M4 Airsoft AEGs
    • Top Valken Airsoft AEGs
    • SMG Airsoft Guns <$200
    • Spring Airsoft Guns <$100
  • Gear Reviews
    • Best Airsoft BB Reviews
    • Top Tactical Airsoft Vests
    • MOLLE Pouch Reviews
    • Top-rated Airsoft Masks
    • Best Airsoft Goggles
    • Optimal Field Gear
    • Daily Deals & Discounts
    • Build Your Toolkit
  • Shop
    • Airsoft Rifles
    • Airsoft Pistols
    • Airsoft BBs
    • Airsoft Goggles
    • Airsoft Masks
    • Airsoft Tactical Vests
    • Tactical Pouches
You are here: Home / Airsoft Pistols / TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun
See Airsoft Pistol 1 TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun
See Airsoft Pistol 2 TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun

TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun

Was $109.95 - check current price

Check Out TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun. Find Great Airsoft Pistols, Airsoft Masks, and Gear.

Shop Deal

Highspeedbbs editors select and review airsoft products independently. We may earn affiliate commissions from buying links, which help support our testing. Support us.

SKU: 631dd4770c02 Category: Airsoft Pistols Tag: gas airsoft pistol
  • Description
  • Additional information

Description

Airsoft Pistol Product Details

TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun

Airsoft Pistol Product Features

Information About Airsoft Pistol Styles

Learn about airsoft sidearms, pistols, and handguns and how you can use them as backup weapons or as primary weapons on the airsoft playing field. A lot of airsoft pistols are fully licensed editions of their actual handgun equivalents and function and appear in the exact same ways while shooting airsoft BBs instead of authentic bullets.

There are a number of varieties of airsoft pistols including CO2, green gas or propane (blowback and non-blowback), spring powered, and AEG automatic electric handguns. Each of these styles of handguns have negatives and positives connected with them. Finding out about the kinds of airsoft pistols allows you to choose which type is right for you and your airsoft play style.

CO2 Airsoft Pistol Details

CO2 airsoft pistols are one of the most dependable and standard types of sidearms. These handguns use sealed CO2 gas cylinders to shoot airsoft BBs out of the pistol barrel.

These forms of airsoft handguns are good choices for playing in cooler weather conditions given that the compressed CO2 gas is stored in the sealed cylinders and less susceptible to performance variations by temperature. This gives CO2 airsoft guns very good FPS and shot consistency while playing airsoft in the winter season for instance where other types of guns like green gas stop operating or barely fire airsoft BBs.

About CO2 Gas and CO2 Cartridge Cylinders

CO2 airsoft guns are powered by typical 12 gram CO2 cartridges. These cartridges resemble a chrome metal cylinder and store high-pressure CO2 gas consisting of just one carbon atom and a couple of oxygen atoms, therefore the molecular formula is “C + O2 “. These atoms are bound in the following sequence “O= C =O”. The gas is kept in the 12 gram cylinders under really high pressure of approximately ~ 800psi that converts to 55bar.

The CO2 cylinders cannot be refilled and you can typically purchase them in packs of 12, 20, 50, or 100 12 gram CO2 cartridge sets. They come sealed to retain the CO2 gas securely inside, but soon after they are punctured (firing them inside of an airsoft weapon breaks the cartridge seal) they will start to lose pressure if they are left unused. You need to attempt to expend the entire CO2 cartridge the same day you open the seal. Use the opportunity to do some pistol target practice and use up the rest of the extra gas if the airsoft matches end and you still have CO2 gas left. There is no gas level indicator on the cartridge so you need to shoot up until the weapon stops cycling.

If they are kept sealed, CO2 cartridges have a long storage life. They have a supplier’s use by date normally noted on the box or cartridge, but they will likely stay pressurized for an extended time past this date if the cartridge seal is not damaged.

Details About Green Gas Airsoft Pistols

Green gas airsoft sidearms resemble CO2 guns, however they do not use CO2 cartridges. Rather, they use green gas or propane for propellant to fire 6mm airsoft BBs. The impact on the airsoft battlefield and green gas weapon effectiveness is virtually the same as CO2 handguns with the guns shooting up to 300+ feet-per-second (FPS). Shots are efficiently fired in semi-automatic or fully-automatic shooting modes and can accurately hit targets at shorter to mid-range ranges.

The propane is held in the pistol’s mag which can normally hold between 15 to 20+ airsoft BBs depending on the handgun type. A series of valves, rubberized gaskets, and silicone seals keep the gas pressurized in the magazine up until the pistol’s trigger is pulled.

When carrying a green gas sidearm on the airsoft field as a main or secondary weapon, additional mags are encouraged for quickly reloading and engaging the op force. Having additional magazines allows you to get back in the action in the course of firefights or while clearing structures in CQB (close quarters combat) room-to-room battles.

Green gas pistols are optimal for CQB at airsoft fields considering that rifles and full-sized AEGs are generally not approved to be used during indoor gameplay. This is a safety regulation because of the close range proximity of players during the shooting engagements. While green gas handguns can still fire airsoft BBs at about 300 FPS, the short pistol barrel assists to keep the joules and energy propelling the BB at a decreased level compared to airsoft rifles, sniper rifles, and other long guns.

Thinking About Green Gas Blowback (GBB) VS Green Gas Non-blowback

There are two various kinds of green gas airsoft pistols. First there are green gas blowback pistols or GBBs. These guns run like an actual pistol with the pistol’s slide “blowing back” and cycling with every shot. The propane gas triggers the slide to cycle each time when a fresh airsoft BB is chambered. This functionality is very cool, but the GBB guns frequently cost more and possibly have more parts which can break. The green gas non-blowback airsoft pistols have a fixed slide which does not move. The non-blowback handguns generally cost less than GBBs. Performance is around the same between the two varieties of green gas pistols.

About GBB and Green Gas Limits

Due to the fact that the green gas or propane is held in the pistol magazine by rubber seals and silicone gaskets, cold weather can impact these seals and cause the stored gas to escape before shooting. This lack of pressure can make the airsoft BBs to just land a couple of feet away (like 10 feet in cold weather ) when the gun would normally shoot 6mm BBs over 100+ foot distances in warmer temperatures).

One strategy to this issue is to keep the GBB pistol mags warmer by positioning them next to your body or by a heater prior to the airsoft game play. If you really need to play with a reliable airsoft handgun in the cold, it may additionally be worth getting a CO2 version of your preferred handgun.

Spring Airsoft Handgun Information

Spring airsoft guns are powered by strong coil springs that send the BBs out of the gun’s barrel. The manual functioning of firing, reloading, and cocking spring guns makes the fire rate much slower than CO2, green gas, and GBB pistols.

Spring sidearms and guns perform most effectively in springer wars where players can exclusively use related, single shot spring guns or as an alternative weapon for CQB buildings when you can frequently surprise other airsoft participants to get a guaranteed one-shot-one-kill. In the latter scenario, a rapid second follow-up shot isn’t required because the other person is already hit by the airsoft BB and out of the game play or moving back to respawn. Take care when engaging multiple opponents due to the fact that the springer just shoots as quick as you can re-chamber an airsoft BB manually.

About Spring Pistol Effectiveness

Spring handguns are quite useful under the most ideal circumstances. Spring guns like pistols can typically shoot accurately up to 120 feet or farther with 0.12 gram BBs but accuracy reduces quickly.

Details About AEG Automatic Electric Airsoft Handguns

AEG airsoft sidearms or AEPs (automatic electric pistols) are also an option to carry as a backup weapon on the airsoft field. These automatic electric handguns are normally powered by mini stick batteries in the pistol’s grip. They operate similar to an AEG SMG and use pressurized air with electrically cycled pistons, cylinders, and gearboxes to shoot airsoft BBs quickly and rapidly.

AEG pistol magazines usually carry about 20 to 30 airsoft BBs. The handguns can fire airsoft BBs up to about 300 FPS using 0.12g airsoft BBs or 200 to 250 FPS using 0.20 gram airsoft BBs.

AEG Pistol Quality and Efficiency

AEG pistol quality has actually increased substantially in the last few years. The early generations were a little bit unreliable and questionable, but the newer models have most of the issues worked out and make reliable airsoft backup guns. They can be improved with increased magazine capacities and also accommodating more powerful batteries.

A significant benefit of buying an AEG pistol is that you have the opportunity to rewire the connectors to use an enhanced battery with higher mAh. Depending on the AEG pistol model, you are able to gain a large boost in performance and fire rate utilizing a two cell Lipo battery (2S Lipo) instead of the stock AEP battery. Be careful when tweaking the elements and the gun’s wires since you have to take into account the voltages, mAh, and loads of the battery. If you have customization questions, ask a qualified professional weapon specialist at your local airsoft shop or store.

What Airsoft Handgun is Right for Me?

If you have over one-hundred dollars to spend on your airsoft pistol, evaluate a green gas blowback handgun or automatic electric handgun. If you have around $50 to $100 to shell out, check out a CO2 pistol or less expensive GBB handgun. You can still look for a durable airsoft handgun by checking out cheaper pistols and by trading with other players in the used gun market if you need to save money.

Frequently Asked Questions About Airsoft Sidearms

Question: What is the most popular type of airsoft handgun?
Answer: The best pistols are often a matter of a player’s preference. CO2 and green gas GBB airsoft sidearms usually are the most durable and effective on the airsoft field. Learn about the different types of airsoft pistols.

Question: What type of airsoft weapon is the TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun?
Answer: The TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun is an airsoft pistol.

Question: Is this airsoft pistol good for first time players?
Answer: This airsoft pistol can be a viable gun to use for first time airsoft players. It depends on the player’s gun budget, their experience using handguns, and how much they believe they will play in the future. The TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun is a decent sidearm for many players to carry.

Question: Is this airsoft pistol rentable?
Answer: Many airsoft fields rent guns. You will find most fields rent automatic electric guns like rifles or SMGs instead of pistols. Therefore, finding this specific pistol model to rent will most likely be more challenging. Talk to the airsoft field near you to see if they rent the specific airsoft handgun model.

Question: Can this airsoft sidearm be enhanced with modifications?
Answer: Possibly, this depends on the airsoft pistol type and build. It may be able to accept upgrades in some cases. Search for parts specific to the TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun.

Question: Are airsoft weapons legal in my state?
Answer: Possibly depending on where you live. Examine your local gun laws or with your local law enforcement authority. States like Arkansas (AR), Colorado (CO), Illinois (IL), Maine (ME), Massachusetts (MA), Michigan (MI), Mississippi (MS), New York and New York City (NY), North Dakota (ND), Texas (TX), and Washington D.C. do have stricter laws and requirements which may apply to airsoft guns like the TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun.

Question: What type of airsoft BBs does this airsoft handgun shoot?
Answer: This airsoft gun normally shoots basic 6mm airsoft BBs which are 0.12g or 0.20g. Look at the pistol’s info for additional information on airsoft BBs.

Question: How far can this airsoft handgun shoot?
Answer: A lot of airsoft handguns can shoot around 80 to 120 feet or more. This may include the TSD Tactical Green Gas Full Metal USP Compact Pistol FPS-350 Full Auto Blowback Airsoft Gun. Weapon precision and range depends upon the shooter’s ability, shooting conditions, weather, wind, terrain, and other factors.

Question: What do I need to understand for airsoft handgun safety?
Answer: Safety is a top priority when using airsoft guns. Participants should constantly use safety goggles and protective face masks. The weapon must be used safely with guidance for training in proper environments or for target practice only. You can learn more about safety by reading the airsoft rules of engagement and safety regulations.

Question: Can this airsoft pistol fire real ammo?
Answer: No, this airsoft handgun can not shoot real ammo and can not be customized in any way to fire live bullets. It is a toy pistol.

Additional information

Category

Airsoft Pistols

Brand

Airsoft

Feet Per Second (FPS)

350 Using .12g BBs (290 FPS Using .20g BBs)

Magazine Capacity

18

Size

7.25 Inches

Weight

1.7 lbs

Best Sellers

Last update on August 17, 2026 // Source: Amazon API

Customers Also Liked

  • Elite Force Airsoft Pistol 1 Beretta Px4 Storm Spring Airsoft Pistol, Clear

    Beretta Px4 Storm Spring Airsoft Pistol, Clear

    Was $23.10 - check current price
    Shop Deal
  • Elite Force Airsoft Pistol 1 Elite Force Umarex H&K P30 w/ Metal Slide Airsoft, Black, Medium

    HK Heckler & Koch P30 6mm BB Pistol Airsoft Gun – Includes 400 BBs

    Was $25.20 - check current price
    Shop Deal
  • Elite Force Airsoft Pistol 1 Elite Force Beretta 92 FS 6mm BB Pistol Airsoft Gun

    Elite Force Beretta 92 FS 6mm BB Pistol Airsoft Gun

    Was $27.89 - check current price
    Shop Deal
  • BBTac Airsoft Pistol 1 BBTac Airsoft Spy Handgun - Twin Pack Pocket Pistol Gun with Storage Case (Gold & Black)

    BBTac Airsoft Spy Handgun – Twin Pack Pocket Pistol Gun with Storage Case (Gold & Black)

    Was $14.99 - check current price
    Shop Deal

Our Links

Home
Terms of Service
Privacy Policy
Affiliate Link Policy
FTC Disclosure
Mission Statement
Media Kit
Marketplace
Contact Us

Shop Gear

Shop All
Airsoft Rifles
Airsoft Pistols
Airsoft BBs
Airsoft Goggles
Airsoft Masks
Tactical Vests
Tactical Pouches
Gun Cases

Product Disclaimer

We make great efforts to maintain reliable information on all airsoft and tactical products presented on High Speed BBs. However, the product information listed on highspeedbbs.com is provided without warranty. Users should always check the manufacturer's official website for warranties, user manuals, terms (if any), and product details. The airsoft product offers that appear on the website are from respective airsoft industry companies, suppliers, and stores from which High Speed BBs receives compensation. This compensation may impact how and where products appear on this site (including, for example, the order in which they appear). This site does not include all airsoft products or all available product offers.

Amazon Associate Disclosure

Amazon Disclosure: Highspeedbbs is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. FTC Disclosure: Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. You can learn more about this from our affiliate policy, terms of service, and privacy policy.

Brand Disclosure

Brand Disclosure: Product names, logos, brands, and other trademarks featured or referred to within our content and website are the intellectual property of their respective trademark holders. Any reference in this website to third party trademarks, brands, or logos is to identify the corresponding third party goods and/or services.

© 2026 HighSpeed BBs. All Rights Reserved