fifty50
Finish Build

Add Essentials

Select from the compatible essentials you need from the list below.

Choose your warranty to complete checkout

Weapon Shield 90

  • EXTENDED Industry Leading 90 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance
$9.99
Add & Checkout

Weapon Shield Extended 135

  • TRIPLE EXTENDED Industry Leading 135 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance

+ Tech Inspection

  • FPS Chronograph Certification
  • Gearbox Cleaning
  • Gearbox Lubrication
  • Fuse Replacement
$19.99
Add & Checkout

AMS Standard 45

  • Industry Leading 45 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Standard processing time, 1-2 business days
$0.00
Checkout

AMS Proshop Warranty Options

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!

Customize It!
On Sale: Ending Soon!
product image

AMS CUSTOM BOLT B4 MK18 SOPMOD BRSS Airsoft AEG Rifle - Black

Get Free Shipping

  1. 1. Buy Any Regular Priced Item
  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
Free Shipping
$535.95Guaranteed Lowest
$600.99 RETAIL PRICE
SAVE!!!
  • Model: M4
  • Muzzle Velocity: 330 FPS
  • Build Material: Metal Recever, Rail System
  • Weight: 6.8 lbs
  • Overall Length: 27.75" in. / 31" in.
  • Inner Barrel: 300 mm
  • Battery Type: 11.1V LiPo Nunchuck
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black
customize it!
Notify When Available!

3 Ways to get Free Shipping

  1. 1. Buy Any Regular Priced Item
  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
Free ShippingThis item qualifies for Free Shipping

Must Haves

BB CombosBBsExtra MagazinesFace & Eye ProtectionGun BagPremium BatteriesSmart Charger for AEGsUniversal Tactical Sling

Tactical Gear

Tactical Vests

Upgrades and Add-Ons

Flashlights & LasersOther AccessoriesScopes and OpticsTactical Foregrips


  • Details
  • Ratings & Reviews

Airsoft Megastore's BOLT AEG Raffle Giveaway:
We love our customers! That's why Airsoft Megastore is proud to announce our September BOLT AEG raffle! Each week in September, one awesome BOLT Airsoft gun will be given away to one lucky winner who participates in our raffle! For week 2, you could win this awesome BOLT B4 SOPMOD MK18!

Purchase ANY product from our Tactical Gear or Airsoft BBs categories for your chance to WIN!

Unfamiliar with BOLT? Recently released to the airsoft market, BOLT AEGs feature a patented B.R.S.S. (Bolt Recoil Shock System) which simulates recoil with each trigger pull. Within the buffer tube is a weight, which is driven by the piston inside the AEG’s reinforced version 2 gearbox, providing powerful felt recoil with each shot!

BOLT's Version 2 gearbox is extremely well built, with a 6061 aircraft grade aluminum cylinder head and piston, providing top-tier performance and added durability. Additionally, this AEG’s sector, spur, and bevel gear are all made from steel, further increasing power and performance.  Thanks to the reinforcements made to the gearbox shell, the AEG’s high torque motor, as well as its upgraded internal components, this BOLT AEG is designed to be used with 11.1V LiPo batteries without any problems.

Interested? We thought you might be. To automatically be entered to win this BOLT AEG Giveaway, purchase any product from our Airsoft BBs or Tactical Gear categories! Contest winners will be announced every Monday, which we will post on our Facebook page! Stay tuned, because each Monday we will release the next gun, with new features and accessories!  See full contest rules in the “Note” section below.

Here’s what is included with this BOLT B4 MK18 CQB Giveaway Prize:

T&D 1x24 Red Dot Sight with Polarizing Filter & Mount
Not only does this optic look awesome, but it is perfect for quick target acquisition. Adjustable for windage and elevation, this sight sites perfectly on the BOLT M4, allowing the shooter to more accurately engage their target area.

J-Rich LED Scout 110 Lumen Flashlight with Pressure Pad and Rail Mount
This flashlight is perfect for anyone playing in a mount area or in a night game. The light has the optional pressure pad, for more reactive shooting, or you can switch to using the button on the back, for longer illumination.

Strike Industries Cobra Tactical Foregrip
Having a foregrip allows the shooter to have a sturdy point of contact with their gun, and put more shots in a tighter grouping. Plus, with a foregrip, shouldering the rifle can be more comfortable and easier to hold.

Features:
- Built-in Bolt Recoil Shock System (BRSS)
- Full metal receiver and outer barrel
- 6-inch full metal quad rail
- More than 24 inches of combined rail space
- Rotary wheel one-piece hop-up unit
- CNC Machined Steel Spur Gear
- Lightweight CNC machined aluminum piston
- High torque motor
- 6.00mm tight bore inner barrel
- Crane stock w/ rubberized buttpad
- Rear adapter QD sling mount
- Adjustable front and rear iron sights
- Steel birdcage flash hider included
- Shoots up to 340 FPS (w/ 0.20g BBs)

Specifications:
Operation:  Electric Automatic (Blowback)
Build:  Metal Upper/Lower Receiver, Outer Barrel, Rail System, Buffer Tube / Polymer Crane Stock, Motor Grip
Firing Modes:  Semi-automatic, Full-automatic, w/ Functional Safety
Muzzle Velocity:  330 – 340 FPS (w/ 0.20g BBs)
Gearbox:  Full Metal Version 2 (w/ Bolt recoil system)
Magazine:  300rd High Capacity (gear wind-up)
Battery:  7.4V / 11.1V LiPo Nunchuck Battery (not included)
Hop-Up:  Adjustable
Weight:  6.8 pounds
Inner Barrel Length: 300mm
Inner Barrel Diameter: 6.00mm (+/- 0.01mm)
Overall Length:  27.75" in. / 31" in. (Retracted / Extended)

Package includes: EBB rifle, hicap magazine, foregrip, Red-dot, flashlight, steel flash hider, replacement mini Tamiya connector, instruction manual

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 that carry perfect spherical consistency and density, available at Airsoft Megastore for the lowest price on the market, guaranteed.

Battery Charger Recommendation:  Airsoft Megastore recommends the use of a universal smart charger to avoid overcharging the battery(overcharged batteries may cause decreased airsoft gun performance and may shorten battery life significantly).  Smart chargers not only shorten charge time significantly (up to 800% faster charging), but more importantly, also automatically shut off once the battery is fully charged to avoid overcharged batteries.

NOTE:  No purchase necessary to enter into the BOLT AEG Airsoft Raffle. A purchase will not improve your chances of winning. Internet access and a valid email address are required in order to participate in this giveaway. Only U.S. residents over the age of 18 may enter into the BOLT AEG Airsoft Raffle. Contest will be held from September 2, 2014 to September 29, 2014. Airsoft Megastore will be giving away one (1) BOLT Airsoft AEG (valued above $300) each week during September 2014. One winner will be chosen randomly (using a random number generator) each week (announced each Monday following the start date of the promotion) for this contest from the complete list of weekly entrants. Winners will be announced on the Airsoft Megastore Facebook page (announced each Monday following the start date of the promotion) and will be sent a contest notification email. Contest winner will have five days (from the date the notification email has been sent) to reply. The BOLT AEG Airsoft Raffle prize will be sent out after the contest winner has replied to the notification. The prize will be shipped out within ten days of the winner's reply. To enter the BOLT AEG Airsoft Raffle contest without making a purchase, please contact Airsoft Megastore at contest@airsoftmegastore.com, to request entry into our BOLT AEG Airsoft Raffle. All requests must include the contestant's name, mailing address, email address, and date of birth. All contest entrants will be automatically entered into our email newsletter mailing list. For questions related to the Airsoft Megastore BOLT AEG Airsoft Raffle Giveaway, or for a list of contest winners, please contact us at contest@airsoftmegastore.com or at Airsoft Megastore, 5012 4th St., Irwindale, CA 91706.

People Also Viewed

More From BOLT Airsoft

Write A Review

  • Please do not use the review feature to ask questions. Any reviews containing questions will not be answered, and will be deleted
  • Please keep your review clean of obscenities and other distasteful content
  • Please be detailed in your review, and talk about what you like/dislike about this product
  • Click here to review submission guidelines.

No one has reviewed this product yet, why don't you be the first?

Free Shipping (Orders $89+)

45 Day Warranty

110% Lowest Price Guarantee

Best in Class Customer Service

Same Day Will Call Pickup

Great customer service, really worked with me.
The rifle I purchased came unable to work, I was able to send the item back and they sent me a band new one with no cost me. Also, their tech service was great as well!! Jasoncampbell, USA
Great customer service, really worked with me.
The rifle I purchased came unable to work, I was able to send the item back and they sent me a band new one with no cost me. Also, their tech service was great as well!! Jasoncampbell, USA
I love the pro gunbuilder by golden eagle!
The gunbuilder was very useful and made it easy for me to buy my first mid/high spec gun for just about $300. It gave me comfort in that i can get more parts to switch out at a later time if i wish to change anything about my rifle and that there will be compatible parts for any modifications i choose to do on it. The gun came in full working order and the hopup was even adjusted to be perfect right out of the box. I could easily hit targets over 150ft away constantly. Johnmstopka, USA
Best Site for Airsofting Gear and Guns
Every time I purchase from Airsoft Megastore I am very satisfied with my order. It arrives on time and the deals are excellent. AMS is probably my go to place for airsofting equipment, especially when I'm itching to add another gun to my collection! macawilliams12, USA
Awesome!
Mega store has been great I've been usen them for 3 years now never no problems. Great products and service fbfzh2005, USA
On point
Shipment was fast and complete technician I spoke to was very helpful. Helped me with problems I was having with my other guns. Very knowledgable with your products. sjstarheel, USA
I love Airsoft Megastore. My stuff is always on time and is always 5 star. This is the most honest and reliable place to buy airsoft guns of the internet! sgodwin2345, USA

Real People. Real Airsoft