20 off
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

Bolt B4 SOPMOD BRSS M4 Electric Recoil EBB 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
$369.95Guaranteed Lowest
$414.99 RETAIL PRICE
SAVE!!!
  • Model: M4
  • Muzzle Velocity: 430 FPS
  • Build Material: Metal Receiver, Rails, Barrel
  • Weight: 7 lbs
  • Overall Length: 31.75" in. / 35.25" in.
  • Inner Barrel: 363 mm
  • Battery Type: 11.1V Nunchuck
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black
customize it!

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

Our take:  What sets the Bolt line of AEGs from other EBB airsoft rifles is the mechanics behind its blowback system.  The Bolt M4 SOPMOD AEG features an innovative Bolt Recoil Shock System (B.R.S.S.) located inside the buffer tube.  The weighted recoil system combined with the blowback action of reciprocating bolt in the receiver, however, delivers responsive recoil highly comparable to other electric recoil electric guns on the market.  If that isn’t enough to pique your interest, the B4 SOPMOD AEG sports Bolt’s upgraded internal components already installed.

A 6.00mm (+/- 0.01) tightbore inner barrel provides improved air seal, yielding increased range, accuracy and muzzle velocity.  The lightweight Bolt piston, made out of rugged aluminum, comes with a full steel tooth set that puts up with the abuse of this high performing rifle.  And a stainless steel gear set significantly improves the durability of the gearbox, including the CNC-machined Bolt spur gear that reacts and functions optimally under high stress.

Also included in this electric recoil AEG is a rubber spring buffer inside the piston that reduces the overall wear of the metal gearbox.  Unlike other electric recoil rifles, the Bolt M4 SOPMOD Airsoft AEG is wired to the rear and is equipped a six-position crane stock.  This makes it easy to house the recommended 11.1V LiPo nunchuck battery (with 20/25C discharge rate).  The Bolt B4 SOPMOD is an upgraded AEG that features responsive recoil, pre-upgraded furniture and well-made internal parts in a single package.

Features:
- Built-in Bolt Recoil Shock System (BRSS)
- Full metal receiver, outer barrel, rail system
- Full steel teeth aluminum piston w/ rubber spring buffer
- Stainless steel CNC-machined spur gear
- 6.00/6.01mm tightbore inner barrel
- 7-inch full metal drop-in quad rail
- More than 25 inches of combined rails
- Rotary wheel one-piece hop-up unit
- Crane stock w/ rubberized buttpad
- Rear adapter QD sling mount
- Adjustable front and rear iron sights
- Steel birdcage flash hider included

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:  410 – 430 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
Inner Barrel Length:  363 mm
Inner Barrel Diameter:  6.00 mm (+/- 0.01mm)
Weight:  7 pounds
Overall Length:  31.75" in. / 35.25" in. (Retracted / Extended)

Package includes:  EBB rifle, hicap magazine, 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. 



GUN FORGE - Custom Built by AMS Customers

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.

Overview

***** 2 / 5
Based on 1 Review(s)
  • (0)
  • (0)
  • (0)
  • (1)
  • (0)
Write Your Own Review

Product Reviews

2 Bolt B4 SOPMOD BRSS M4 Electric Recoil EBB Airsoft AEG Rifle - BLACK *****
Its ok.

"The fps review is completely wrong. You might get 340fps with this MAYBE. I have had to upgrade my gun extensively to reach 410fps and that's with a m130 spring. The overall performance of the gun is amazing though. Realistic as hell. But the fps on this gun is rated completely wrong here. Not even close to even 400fps."

Was this review helpful to you?

Free Shipping

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