Summer Cleanout Sale!
Huge Savings On 2000+ Items From 200+ Brands - SHOP NOW

Summer Cleanout Sale!
Huge Savings On 2000+ Items From 200+ Brands - SHOP NOW

Daily Deal: Brownells Acraglas 2-Gun Bedding Kit $27.99  $21.99 - Get Yours! 

AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green
AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec FDE
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Multi-Cam
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec Coyote Brown
AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green
None
MadeInUsa OFF

B5 SYSTEMS - AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray

32 Reviews
Color
AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray
Brownells #
100016916
MFR #
SOP-1123
UPC
748252571939
$95.00
Coupon Code
Purchase Limit Help

Out of Stock

NOTIFY ME WHEN IT'S BACK IN STOCK
Can we ship this to you? (US only)
{{restriction.odmShipCheckMessage}}

How To Buy Guns Online

International purchase information

Specifications
Material:
Polymer
Buttstock Fit:
Mil-Spec
Buttstock Style:
Collapsible
Make Model Fit:
AR-15.Universal
Color:
Gray
Restriction
Restricted Part:
Yes
View US State Restrictions
Can we ship this to you? (US only)
{{restriction.odmShipCheckMessage}}

How To Buy Guns Online

International purchase information

What is the B5 SYSTEMS - AR-15 Enhanced SOPMOD Stock Collapsible Mil-Spec Gray?

Currently employed by the U.S. military, this reinforced polymer stock fits M4-type receiver extensions and offers an improved cheekweld designed for increased comfort and consistency. Two waterproof storage compartments running the length of the stock hold 2 AA or 3 CR-123 batteries. Streamlined contours resist snagging on clothing, equipment, or vegetation to aid in safe and stealthy operation. Sure-Grip stock latch ensures convenient and intuitive length-of-pull adjustment, while the anti-slip rubber recoil pad secures the weapon to the operator’s shoulder. Features a black, stainless steel QD swivel mount and two molded 1¼" wide sling slots.

See all of our AR15s and AR15 parts here.

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

Video poster
Please select a FFL Dealer
or
7 dealers near
Distance:
10miles
arrow-down
Sort by:
Nearest first
arrow-down
pin wrong
No dealers found

Please search by another zipcode to find the nearest dealer.

Close
Brownells Retail Store
Phone Call
Pin in
Clock
You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.
* Must accept required fields.
  • Pin in Brownells Featured Dealers

    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

  • Pin in Standard Dealers

    Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.

  • Pin in Not Available Dealers

    Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

Switch view map
7 dealers near

Alternative products

Left Badge
Right Badge OFF  
5 Stars

200

300

Add on

Left Badge
Right Badge OFF  
5 Stars

200

300

AR-15 ENHANCED SOPMOD STOCK COLLAPSIBLE MIL-SPEC REVIEWS

4.5
32 Reviews
5 Stars
78%
4 Stars
9%
3 Stars
3%
2 Stars
6%
1 Stars
3%
Reviews Summary
The B5 SOPMOD Enhanced Stock impresses users with its solid construction, excellent cheek weld, and snug fit on mil-spec buffer tubes. While some have faced issues with battery compartment accessibility and minor QC flaws, many consider it a superior alternative to pricier options like LMT. Overall, it's recommended for AR builds, offering comfort and durability.
What Reviewers Are Saying
Product Quality
65%
Reviewers often praise the high quality and solid construction of the B5 SOPMOD stock, indicating it performs reliably under various conditions and is equivalent in feel and function to more expensive options like the LMT SOPMOD. Many users express satisfaction with its durability and overall design, contributing to a positive overall perception of the product.
Comfort and Ergonomics
70%
The stock is frequently highlighted for offering an excellent cheek weld, making it comfortable to use during shooting. Users appreciate how it fits snugly and well on the buffer tube, enhancing shooting stability and overall experience, particularly for those accustomed to handling firearms in various positions.
Battery Compartment Issues
30%
Several reviews point out frustrations with the battery storage feature in the stock. Many users note that accessing the waterproof battery compartments requires removing the stock from the buffer tube and dealing with tightly sealed caps. This design can be cumbersome, especially in urgent situations, leading to dissatisfaction.
Cost Effectiveness
50%
Customers appreciate the B5 SOPMOD stock as a budget-friendly substitute for the pricier LMT variant, noting that it offers comparable performance at a significant cost saving. This aspect draws many buyers looking for quality without high expenditure, making it an appealing choice for AR enthusiasts.
Customer Support and Service Experience
40%
Reviewers generally report positive experiences with customer support, highlighting quick responses and effective solutions when issues arise, such as missing parts. Users express trust in the company's commitment to quality and customer satisfaction, reinforcing the brand's reputation.
Community and Recommendations
55%
Many users recommend the B5 SOPMOD stock based on personal experience and community feedback, suggesting a strong following and high endorsement within the shooting community. Users share positive comparisons to other stocks, contributing to the stock's popularity within AR-15 builds.
5
Good stuff
Was exactly what I was looking for, will definitely buy again if i need more!
Would you recommend this? Yes, I would recommend to a friend
by CHRISTOPHER KREMER on May 21, 2026
Verified Purchase
Was this review helpful? 0
5
A great stock
The insert for the forward QD point is a must have!
by Brent Gardner on February 02, 2026
Verified Purchase
Was this review helpful? 0
5
Good Stock
Easy to put on and use affordable price worth for what you’re getting
Would you recommend this? Yes, I would recommend to a friend
by Cash Havens on February 01, 2026
Verified Purchase
Was this review helpful? 0
5
Ral 8000 SOPMOD perfect for Hk416
Got this for an HK 416 build with the Ral 8000 parts. This matches really well considering.
Would you recommend this? Yes, I would recommend to a friend
by MIGUEL FILPO on October 23, 2024
Verified Purchase
Was this review helpful? 0
5
I love RAL8000
B5 makes the best stocks on the market but I especially love that they make it in RAL8000 now if we could just get them to make em in RAL7008
by THOMAS BAILY on June 24, 2024
Verified Purchase
Was this review helpful? 0
View All 32 Reviews
Customer Questions
0 Questions