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Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver 13833 Caliber: 5.56x45mm NATO, Barrel Length: 16.1 in, 12% Off w/ Free Shipping

Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
1 of 5 images
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
2 of 5 images
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
3 of 5 images
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
4 of 5 images
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833
5 of 5 images
Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver, Black, 15in M-LOK Handguard, ETM Flash Hider, BCG Included, 1-8 Twist, 13833

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Questions & Answers
Customer Reviews
Helpful Positive Review
Ty AR build by burger, Verified Owner, November 9, 2025
I recommend this upper for new beginners to the AR family. I’ve shot over 2500 rounds through this upper receiver no problems at all. It’s a good price range and the makers of this upper came up with a nice beautiful finish
1/2 found this helpful
Read 1 Review
Caliber:
5.56x45mm NATO
Barrel Length:
16.1 in
Gas System Length:
Mid Length
Barrel Twist Rate:
1-10
Firearms Threads Per Inch:
1/2x28
Handguard Type:
Free-Float
Muzzle Device:
Flash Hider
Finish:
Type III Hardcoat Anodized
Color:
Black
Gun Model:
AR-15
Handguard Length:
15 in
Barrel Material:
4150 CMV Steel
Weight:
4.2 lb
Condition:
New

Code: GCH-UFH-GT-13833-13833

MPN: 13833

UPC: 022188894615

List: $879.00Save 13%
$768.99

ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

Product Info for Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver

The GVAC system from Gemtech. Significantly reduce the amount of gas blowback you'll experience wwhen shooting suppressed with its patented design. The re-imagined barrel profile, enhanced bolt carrier profile, enhanced bolt carrier group, and ETM muzzle device maximize peformance so nothing holds you back. Redefine suppressed shooting with the GVAC system.image

WARNING: California`s Proposition 65

Specifications for Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver:

Manufacturer: Gemtech
Caliber: 5.56x45mm NATO
Barrel Length: 16.1 in
Gas System Length: Mid Length
Barrel Twist Rate: 1-10
Firearms Threads Per Inch: 1/2x28
Handguard Type: Free-Float
Muzzle Device: Flash Hider
Finish: Type III Hardcoat Anodized
Color: Black
Gun Model: AR-15
Fabric/Material: 7075-T6 Aluminum
Handguard Length: 15 in
Gun Rail: Picatinny
Gun Type: Rifle
Gun Make: AR Platform
Barrel Material: 4150 CMV Steel
Gas System Type: Direct Impingement
Weight: 4.2 lb
Bolt Carrier Group Included: MIL-SPEC
Magazine Included: No
Condition: New
Mount Type: M-LOK

Features of Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver

  • Upper Receiver - Mil-Spec with Indexing Marks and M4 Feed Ramps. 7075-T6 Aluminum, Type III Hard Coat Anodized
  • Barrel- 4150CMV Steel, Stress Relieved, Armornite Treated, 1:8 Twist, 5R Rifled, GVAC Profile, Nickle Boron Coated barrel Extension, 1/2X28 TPI Muzzle Threads
  • Gas System - Pinned Low-Pro GVAC Gas Block, 4140CM Steel, Mid-Length GVAC, Direct-Impingement
  • Muzzle Device - Gemtech ETM Flash Hider, 4140CM Steel
  • Bolt Carrier Group - Carpenter 158 steel bolt, 8620 Steel Carrier, Mil-Spec MP Tested, Mag-Phos Finish, Chrome Lined, Properly staked Gas Key, Enhanced reliability bolt carrier and chrome firing pin.
  • Handguard - 15in Midwest Industries Combat M-LOK Free-Float SevenSided M-LOK hand guard. Continuous MIL-STD 1913 Picatinny Top Rail, Integrated QD sling sockets. Machined from 6061-T6 Aluminum, and Type III Hard Coat Anodized.

Package Contents:

  • Gemtech GVAC 5.56x45mm NATO 16.10in Upper Receiver

What firearm models does the manufacturer say Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver is compatible with?

The manufacturer says that Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver is compatible with AR-15

Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver Orderable Models

List of Orderable Models

  • Gemtech GVAC 16 inch 5.56mm Complete Upper Receiver, 13833 , MPN: 13833 , UPC: 022188894615 , Code: GCH-UFH-GT-13833-13833
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Last updated 2026-10-09 UTC.