great lakes firearms logo
  • Shop
  • About
  • Services
    • Engraved Guns
    • Light Gunsmithing
    • Ultrasonic Gun Cleaning
  • Contact
$0.00 0 Cart
  • Ammo
    • Handgun Ammunition
    • Rifle Ammunition
    • Rimfire Ammunition
    • Shotgun Shells
  • Guns
    • Combination Guns
    • Derringers
  • Handguns
    • Semi Auto Handguns
    • Single Shot Handguns
    • Revolvers
    • Other Handguns
  • Magazines
    • AR Magazines
    • AK Magazines
    • Handgun Magazines
    • Rifle Magazines
    • Shotgun Magazines
  • Optics
    • Binoculars
    • Gun Scopes
    • Gun Sights
    • Laser Sights
    • Night Vision
    • Range Finders
    • Red Dots Sights
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Rifles
    • AR Rifles
    • AK Rifles
    • Bolt Action Rifles
    • Lever Action Rifles
    • Pump Action Rifles
    • Semi Auto Rifles
    • Single Shot Rifles
    • Other Rifles
  • Parts
    • AR Lower Parts
    • AR Lower Parts Kits
    • AR Upper Parts
    • AR15 Parts
    • Class 3 Parts & Accessories
    • Glock Parts
    • Gun Parts
    • Gun Parts Kits
    • Handgun Parts
    • Other AR15 Accessories & Parts
  • Shotguns
    • Bolt Action Shotguns
    • Lever Action Shotguns
    • Over Under Shotguns
    • Pump Action Shotguns
    • Semi Auto Shotguns
    • Single Shot Shotguns
    • Side By Side Shotguns
    • Other Shotguns
  • Scopes
    • Scope Accessories & Scope Parts
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Pre-Owned
great lakes firearms logo
  • Ammo
    • Handgun Ammunition
    • Rifle Ammunition
    • Rimfire Ammunition
    • Shotgun Shells
  • Guns
    • Combination Guns
    • Derringers
  • Handguns
    • Semi Auto Handguns
    • Single Shot Handguns
    • Revolvers
    • Other Handguns
  • Magazines
    • AR Magazines
    • AK Magazines
    • Handgun Magazines
    • Rifle Magazines
    • Shotgun Magazines
  • Optics
    • Binoculars
    • Gun Scopes
    • Gun Sights
    • Laser Sights
    • Night Vision
    • Range Finders
    • Red Dots Sights
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Rifles
    • AR Rifles
    • AK Rifles
    • Bolt Action Rifles
    • Lever Action Rifles
    • Pump Action Rifles
    • Semi Auto Rifles
    • Single Shot Rifles
    • Other Rifles
  • Parts
    • AR Lower Parts
    • AR Lower Parts Kits
    • AR Upper Parts
    • AR15 Parts
    • Class 3 Parts & Accessories
    • Glock Parts
    • Gun Parts
    • Gun Parts Kits
    • Handgun Parts
    • Other AR15 Accessories & Parts
  • Shotguns
    • Bolt Action Shotguns
    • Lever Action Shotguns
    • Over Under Shotguns
    • Pump Action Shotguns
    • Semi Auto Shotguns
    • Single Shot Shotguns
    • Side By Side Shotguns
    • Other Shotguns
  • Scopes
    • Scope Accessories & Scope Parts
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Pre-Owned
$0.00 0 Cart
Click to enlarge
Home Gun Parts AR15 Parts AR15 Uppers BRN-15 5.56MM 13.7” BBL .750” GAS BLOCK UPPER RECEIVER
BRN-15 5.56MM 11.5'' BBL .750'' GAS BLOCK UPPER RECEIVER
BRN-15 5.56MM 11.5'' BBL .750'' GAS BLOCK UPPER RECEIVER $371.00
Back to products
BRN M24E/REM 700 6.5 CREEDMOOR 24'' STAINLESS STEEL BARREL
BRN M24E/REM 700 6.5 CREEDMOOR 24'' STAINLESS STEEL BARREL $371.00

BRN-15 5.56MM 13.7” BBL .750” GAS BLOCK UPPER RECEIVER

$371.00

BRN-15 5.56MM 13.7” BBL .750” GAS BLOCK UPPER RECEIVER

1 in stock

Purchase & earn 371 points!
Compare
Add to wishlist
SKU: CROW|304492 Category: AR15 Uppers
Share:
  • Additional information
  • Reviews (0)
  • Shipping & Delivery
Additional information
UPC

050806000247

Manufacturer

Brownells

Manufacturer Part Number

4027-3410-B3

Muzzle

1/2-28

Rate of Twist

1-7

Style

Assembled

Color

BLACK

Finish

Anodized

Length

13.7''

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “BRN-15 5.56MM 13.7” BBL .750” GAS BLOCK UPPER RECEIVER” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery

Related products

Compare

ALEXANDER AR15 UPPER HUNTER – 6.5 GRENDEL 18″ BLACK

AR15 Uppers
$827.00
ALEXANDER AR15 UPPER HUNTER - 6.5 GRENDEL 18" BLACK
Add to wishlist
Purchase & earn 827 points!Add to cart
Quick view
Compare

POF USA RENEGADE+ UPPER 5.56 10.5″ BLK

AR15 Uppers
$1,192.00
POF USA RENEGADE+ UPPER 5.56 10.5" BLK
Add to wishlist
Purchase & earn 1,192 points!Add to cart
Quick view
Compare

RADIAN MODEL 1 COMPLETE – UPPER 300BLK 9″ FDE

AR15 Uppers
$1,829.95
RADIAN MODEL 1 COMPLETE - UPPER 300BLK 9" FDE
Add to wishlist
Purchase & earn 1,830 points!Add to cart
Quick view
Compare

RADIAN MODEL 1 COMPLETE AR15 – UPPER 223 WYLDE 10.5 FDE

AR15 Uppers
$1,904.95
RADIAN MODEL 1 COMPLETE AR15 - UPPER 223 WYLDE 10.5 FDE
Add to wishlist
Purchase & earn 1,905 points!Add to cart
Quick view
Compare

RADIAN MODEL 1 COMPLETE AR15 – UPPER 223 WYLDE 14.5 BLACK

AR15 Uppers
$1,994.95
RADIAN MODEL 1 COMPLETE AR15 - UPPER 223 WYLDE 14.5 BLACK
Add to wishlist
Purchase & earn 1,995 points!Add to cart
Quick view
Sold out
Compare

SHARPS BROS. UPPER RECEIVER – AR-15 BILLET W/DUST COVER

AR15 Uppers
$213.75
SHARPS BROS. UPPER RECEIVER - AR-15 BILLET W/DUST COVER
Add to wishlist
Purchase & earn 214 points!Read more
Quick view
Compare

STERN DEF. PISTOL UPPER 9MM – 8.5″ BBL. 10″ M-LOK RAIL

AR15 Uppers
$498.56
STERN DEF. PISTOL UPPER 9MM - 8.5" BBL. 10" M-LOK RAIL
Add to wishlist
Purchase & earn 499 points!Add to cart
Quick view
Sold out
Compare

UPPER RECEIVER ASSEMBLY WITH LASER T MARKS – M4, ALUMINUM

AR15 Uppers
$135.00
UPPER RECEIVER ASSEMBLY WITH LASER T MARKS - M4, ALUMINUM
Add to wishlist
Purchase & earn 135 points!Read more
Quick view

    At Great Lakes Firearms of Porter, Indiana, our mission is to provide our customers with the finest firearms and ammunition available, while promoting responsible gun ownership and safety.

    Quick Links

    • About
    • Service
    • Shop
    • Blog
    • Contact

    Useful Link

    • Privacy Policy
    • Term Of Use
    • Returns Policy
    • Reviews

    Great Lakes Firearms

    • (219) 617-6679
    • 1355 Dune Meadows Dr,
      Porter, Indiana 46304

    Newsletter

    Copyright 2025, Great Lakes Firearms | All Rights Reserved.

    Shopping cart
    Close
    Start typing to see products you are looking for.
    Shop
    Wishlist
    0 items Cart
    My account