RTB 4.5" 9mm Upper Receiver - BLK | A2 | 4.5" M-LOK HG | Without BCG & CH

Rating: Total Reviews: (2 reviews) Write a Review
Product Code: RTBBU-459MM4A2-BLK
MSRP: $410.95
Sale Price: Sale Price: $167.95
$167.95
Click for Price

Right To Bear Barreled 4.5" 9mm Upper Receiver | A2 | 4.5" M-LOK Handguard | Black

 NO BCG OR CHARGING HANDLE INCLUDED

Click here for Charging Handles

Click here for Bolt Carrier Groups

This Barreled 4.5 inch M-LOK upper receiver comes with a 4.5 inch free-float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel making the action smooth and easy to keep clean.

Barrel
Specifications
Caliber 9mm
Length 4.5
Material 4150 Chrome Moly Vanadium
Profile Straight
Finish QPQ Corrosion Resistant
Gas System Length None
Gas Block Journal N/A
Dimpled? No
Twist Rate 1:10
Muzzle Thread 1/2x36 TPI
Weight 8.3oz
Barrel Extension Integrated
Target Crown 11 Degree


Upper Receiver:

  • Machined from a Mil-Spec 7075 T6 Forging
  • Black Anodized


Handguard:

  • MATERIAL: HARD COAT ANODIZED/CERAKOTED ALUMINUM HANDGUARD, ALUMINUM BARREL NUT
  • PRECISION BORE
  • ACCEPTS M-LOK RAIL SECTIONS & ACCESSORIES
  • 7075-T6 BARREL NUT
  • RAIL LENGTH IS MEASURED ALONG THE TOP
  • INNER DIAMETER: 1.36"
***Please allow an additional 2-3 business days of lead time as these uppers are made to order.***
SKU:
RTBBU-459MM4A2-BLK