HOME > AR-15 > AR-15 UPPER PARTS >

MAS DEFENSE 12.62" MW8 OCTAGON M-LOK AR-15 RAIL - BLACK
MAS DEFENSE 12.62" MW8 OCTAGON M-LOK AR-15 RAIL
 
Alternative Views:
MSRP: $140.00
Our Price: $119.99
SALE PRICE: $89.99

Stock Status: In Stock


Product Code: MAS00106512
Qty:

DESCRIPTION
 
MAS DEFENSE 12.62" MW8 OCTAGON M-LOK AR-15 RAIL - BLACK
Rifle Length

SPECIFICATIONS:
Platform: AR-15
Length: 12.62"
Material: 6061-T6 Aluminum
Coating: Black Hardcoat Anodized Mil-Std-171 Type III
Weight including Hardware: 11.2 oz
ID: 1.80"
Proudly Made In The USA

DESCRIPTION:
Full top picatinny rail for optional attachments
Quick Detach Mounts are built into the handguard at the rear positions
M-LOK attachment points are located at the 45 and 90 degree flats (7 Sides)
Build in anti-rotations tabs
The barrel nut requires a standard AR-15 armorers wrench
The handguard set screws should be torqued evenly to 35 INCH LBS with blue removable loctite applied
The barrel nut must be torqued to a minimum of 38 FOOT LBS
Installation should be complete by a gunsmith.

RELATED ITEMS
16" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" .223 WYLDE AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL
SALE PRICE: $244.99
SALE PRICE: $292.99
SALE PRICE: $332.99
SALE PRICE: $309.99
16" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" .223 WYLDE AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL
18" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL - MID LENGTH GAS
SALE PRICE: $299.99
SALE PRICE: $309.99
18" 5.56 / .223 BALLISTIC ADVANTAGE BARREL - MAS NERO 15" M-LOK RAIL 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL - MID LENGTH GAS

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 9 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Fast Shipping....great product! July 15, 2026
: Brad from White Lake, MI United States  
Fast shipping and great products.  I had a hard time finding a handguard that I could tuck my suppressor in to.  It worked perfectly!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Great Quality, Great Price February 19, 2026
: Leroy Richardson from Suffolk, VA United States  
I needed a suppressor width handguard and the other brands are cunning in at over $200, you can't beat the price without sacrificing quality. I love MAS

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Handguard September 18, 2025
: Charles Wilson from Gorham, ME United States  
Has a bigger diameter that feels good in the hand. Plenty of clearance for adjustable gas blocks and mlok attachments. Solid mount to the barrel nut. Quality handguard for a decent price.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Nice Handguard September 18, 2025
: Alexander Monroe from Edmond, OK United States  
I am switching from a quad rail to an Mlok. Like my handguard went on a diet! Fits some nice Mlok grips I got from VZ Grips and looks great. Fits over a 1.75” suppressor while not adding a giant OD guard. Feels good in the hand. High quality precision manufacturing. Third handguard I have from masdefense.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 My new Favorite Company! August 5, 2025
: JOHNNY LEE from TX United States  
I came across MAS DEFENSE abit haphazardly, but something about the craftsmanship and design really caught my attention for my newest Build, i dubbed "NIGHTRIDER". Let me tell you, i could not be more happy when both FDE and Black came in today! This is easily probably going to be my all time favorite Build! i am thoroughly impressed with the design and feel. I can't wait till the next sale get the 15in MW8 HANDGUARD To make a solid RECCE build. Thank You again MAS DEFENSE, for a top notch product, and I definitely look forward doing more business in the future!

Was this review helpful to you?

View All Customer Reviews


16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL - PISTOL GAS
16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL - PISTOL GAS
$299.99