AirSplat Signature Bundles & Packages
Spring Airsoft Pistols
Spring Airsoft Rifles & Sniper Rifles
Gas AirSoft Pistols
Gas Airsoft Rifles & Sniper Rifles
Entry & Middle Level Airsoft Rifle AEG
Electric Airsoft Rifle AEG Guns Rifles
Airsoft Gun Magazines (Spring, Gas, AEG)
Airsoft 0.12g-0.3g 6mm BB & Targets
Airsoft Gas, CO2, Batteries, & Chargers
Grenades, Laser, Light, Scope & Mounts
Internal Upgrades Airsoft Guns
External Upgrades Airsoft Guns
Airsoft Goggle, Half Full Mask, Helmets
Apparel, BDU, Cap, Scarf, Patches
Vests, Chest Rig, Plate Carrier, Pouches
Rifle Bags, Gun Cases, BackPacks, & Bags
Paintball Guns, Barrels, & Accessory
Pre-Owned & Scrap Yard Airsoft Items Gun
Zombie & Halloween AirSoft Decorations

Newly Arrived

WE Katana M4 RAPTOR Airsoft AEG 400

$439.99 ADD TO CART

WE Katana M4 RIS Airsoft Rifle AEG 300

$389.99 ADD TO CART

CYMA M14 EBR-B Airsoft Sniper AEG Rifle

$268.99 ADD TO CART
 

M4 M16 Airsoft Gun Internal Upgrades

Internal upgrade parts specifically & designed for use w/ the M4 or M16 Airsoft electric, gas & spring operated rifles.

Systema Precision BS Barrel CAR15 P90

Item Code: AC-UPI-Z0932-AR
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema Tight Bore BS 247 mm Precision Barrel (9.7 inches)
- High Performance Barrel for CAR 15, P90, P90TR, G36C, Sig 552, or any comparable Airsoft AEG Gun Rile
- Tight Bore High Perfomance Airsoft AEG Gun 6.04 mm Inner Barrel
- Perfect for tighter grouping, more accurate shooting
- Increases FPS for Higher Veloicty and more accurate shots
- Airsoft Barrel Upgrade Video Review Available. Click More Info.
Systema Precision BS Barrel CAR15 P90
Price:$34.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema Precision BS Barrel M4 XM Sig551

Item Code: AC-UPI-Z0930-M4
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema Tight Bore BS 350 mm Precision Barrel (12 inches)
- High Performance Barrel for M4, M4A1, Sig 551, XM 177, or any comparable Airsoft AEG Gun Rile
- Tight Bore High Perfomance Airsoft AEG Gun 6.04 mm Inner Barrel
- Perfect for tighter grouping, more accurate shooting
- Increases FPS for Higher Veloicty and more accurate shots
- Airsoft Barrel Upgrade Video Review Available. Click More Info.
Systema Precision BS Barrel M4 XM Sig551
Price:$36.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema Precision BS Barrel M16 AUG SR16

Item Code: AC-UPI-Z0926-A2
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema Tight Bore BS 509 mm Precision Barrel (20 inches)
- High Performance Barrel for M16 A1, M16 A2, Stery Aug, or any comparable Long Airsoft AEG Gun Rile
- Tight Bore High Perfomance Airsoft AEG Gun 6.04 mm Inner Barrel
- Perfect for tighter grouping, more accurate shooting
- Increases FPS for Higher Veloicty and more accurate shots
- Airsoft Barrel Upgrade Video Review Available. Click More Info.
Systema Precision BS Barrel M16 AUG SR16
Price:$37.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY M4 6.03id Bore Barrel 363mm

Item Code: AC-UPI-MD-HY363
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Weeks
 
MadBull Black Python 363mm Tight Bore Barrel M4
Specifications:
- Black Python BP363 363mm Tight Bore Barrel
- Apply to Model 4A1/SR16 series
- The choice of B.B. will be very important. We will only ensure our barrel is 6.03mm diameter
- MOD BARL 363MM
*MODIFY M4 6.03id Bore Barrel 363mm
Price:$36.00  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY M4 6.03id Barrel 300MM (CQB-R)

Item Code: AC-UPI-MD-HY300
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Weeks
 
Modify 6.03id Hybrid Tight Bore Barrel - 300MM (CQB-R)
Specifications:
- 1st Class Stainless Steel + Aluminum Alloy
- 6.03mm ID
- Guided by an O-ring to reduce barrel vibration
- Comes with Modify 3-Ring Hop Up Bucking
- MOD BARL 300MM
*MODIFY M4 6.03id Barrel 300MM (CQB-R)
Price:$36.00  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY M4 6.03id Barrel 285MM (CQB-R)

Item Code: AC-UPI-MD-HY285
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Weeks
 
Modify 6.03id Hybrid Tight Bore Barrel - 285MM (CQB-R)
Specifications:
- 1st Class Stainless Steel + Aluminum Alloy
- 6.03mm ID
- Guided by an O-ring to reduce barrel vibration
- Comes with Modify 3-Ring Hop Up Bucking
- MOD BARL 285MM
*MODIFY M4 6.03id Barrel 285MM (CQB-R)
Price:$36.00  per EACH
QTY:   Add to cart Add to Wish List
 

MADBULL Black Python 363mm TB Barrel

Item Code: AC-UPI-MB-BP363
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Mad Bull & Bravo Airosft
Stock: Yes & Ships w/in 24Hrs*
 
Mad Bull Python 363mm Tighbore Barrel M4A1 / SR16
- 6.03mm Bore
- Best balance between accuracy and reliability for full auto firing
- Special smooth coating process to reduce drag on BB
- 363mm in length for M4A1 / SR16 AEG
MADBULL Black Python 363mm TB Barrel
Price:$32.99  per EACH
QTY:   Add to cart Add to Wish List
 

MADBULL Black Python 300mm TB Barrel

Item Code: AC-UPI-MB-BP300
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Mad Bull & Bravo Airosft
Stock: Yes & Ships w/in 24Hrs*
 
Mad Bull Python 300mm Tighbore Barrel M4 CQB / M733
- 6.03mm Bore
- Best balance between accuracy and reliability for full auto firing
- Special smooth coating process to reduce drag on BB
- 300mm in length for M4 CQB or M733
MADBULL Black Python 300mm TB Barrel
Price:$32.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire Barrel 6.04 M4 M15 SG551 407mm

Item Code: AC-UPI-DF-CPB03
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 

- SHOULD BE USED WITH ADD ON SILENCER
- Deep Fire Airsoft AEG Precision Barrel for SG551 M4 M15 with Suppressor
- 407mm Length Stainless Steel Tightbore Upgrade Barrel
- Additional 45m Barrel Length for extended barrel with suppressor
- 6.04mm Precision Inner Airsoft Rifle Barrel
- Perfect for tighter grouping & more accurate shooting
- Increases FPS for Higher Velocity
- Airsoft Barrel Upgrade Video Review Available. Click More Info.
Deep Fire Barrel 6.04 M4 M15 SG551 407mm
Price:$29.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire Barrel 6.04 M4 M15 SG551 363mm

Item Code: AC-UPI-DF-CPB02
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 

- Deep Fire Airsoft AEG Precision Barrel 6.04mm for SG551 M4 M15 SPC and CARB
- 363mm Stainless Steel Tightbore Upgrade Barrel
- 6.04mm Precision Inner Airsoft Rifle Barrel
- Perfect for tighter grouping & more accurate shooting
- Increases FPS for Higher Velocity
- Airsoft Barrel Upgrade Video Review Available. Click More Info.
Deep Fire Barrel 6.04 M4 M15 SG551 363mm
Price:$27.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical Precision 407mm 6.02 Barrel

Item Code: AC-UPI-AS-IB407
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical Precision 407mm Tighbore Inner Barrel M4A1 / SR16
- 6.02mm Bore
- Stainless Steel Construction
- Best balance between accuracy and reliability for full auto firing
- Special smooth coating process to reduce drag on BB
AS Tactical Precision 407mm 6.02 Barrel
Price:$26.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical Precision 363mm 6.02 Barrel

Item Code: AC-UPI-AS-IB363
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical Precision 363mm Tight Bore Inner Barrel M4A1 / SR16
- 6.02mm Bore
- Stainless Steel Construction
- Best balance between accuracy and reliability for full auto firing
- Special smooth coating process to reduce drag on BB
- 363mm in length for M4A1 / SR16 AEG
AS Tactical Precision 363mm 6.02 Barrel
Price:$24.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical Precision 300mm 6.02 Barrel

Item Code: AC-UPI-AS-IB300
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical Precision 300mm Tighbore Inner Barrel M4 CQB-R
- 6.02mm Bore
- Stainless Steel Construction
- Best balance between accuracy and reliability for full auto firing
- Special smooth coating process to reduce drag on BB
AS Tactical Precision 300mm 6.02 Barrel
Price:$24.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical Precision 275mm 6.02 Barrel

Item Code: AC-UPI-AS-IB275
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical Precision 275mm Tighbore Inner Barrel M4 CQB
- 6.02mm Bore
- Stainless Steel Construction
- Best balance between accuracy and reliability for full auto firing
- Special smooth coating process to reduce drag on BB
AS Tactical Precision 275mm 6.02 Barrel
Price:$24.99  per EACH
QTY:   Add to cart Add to Wish List
 
 

Shopping Cart

$0.00

Find us on:

AirSplat YouTube AirSplat FaceBook AirSplat Airsoft Blog Airsoft Airsoft Instagram AirSplat Airsoft Twitter
AirSplat 5 Guarantees Airsoft University Airsoft University Airsoft Safety Airsoft Shopping Buying Guide Airsoft Gun Maintenance Airsoft Gun Reviews
28,513,984
  Guns Shipped since 2001!

As Featured In:

AirSplat Awards

Reviews We love AirSplat!We have an airsoft team and we only buy from AirSplat! You guys are the best! We compare prices and shipping all the time and every time you are the best priced and fastest shipping.

-Joseph G from WY

More Testimonials