Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Is this CA compliant? Expert Answer

The Ghost Firearms 5.56 Complete Upper Receiver w/ Rifle Lower Parts Kit is not CA Compliant.

by Hunter, Gear Expert, June 8, 2023
bought compete upper but bolt carrier will not pull all the way back. Does it need a specific lower? Expert Answer

Please email us at Techsales@opticsplanet.com so we can assist you further as this can be a result of multiple different issues.

by Ethan, Gear Expert, August 9, 2022
Customer Reviews
Most Recent Reviews
5.56 Upper by B, Verified Owner, February 9, 2024
I purchased this to do a build, it's exactly what you'd expect, the upper rail is a picatinny style rail, the lower rail, which is my only complaint, is not, which isn't really annotated anywhere in the description nor are there enough pictures of th...
Read More...
Read 1 Review
5 Models Available
Color
All
Finish
All
Barrel Profile
All
Gun Model
All
Included Accessories
All
Search

ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.

Product Info for Ghost Firearms 5.56 Complete Upper Receiver w/ Rifle Lower Parts Kit

Each Ghost Firearms 5.56 NATO Complete Upper Receiver w/ Rifle Lower Parts Kit is packed with high-quality parts that will help you build a powerful firearm. These Ghost Firearms AR15 Lower Parts come with Mil-Spec lower parts and a carbine length gas system. This Ghost Firearms 5.56x45mm NATO Complete Upper Receiver w/ Rifle Lower Parts Kit features a Mil-Spec 7075-T6 aluminum upper receiver that's rugged yet lightweight. Get most of the essential components you need to craft a premium firearm using this Ghost Firearms 556 w/ M-LOK Rail Rifle Kit.image

Specifications for Ghost Firearms 5.56 Complete Upper Receiver w/ Rifle Lower Parts Kit:

Manufacturer: Ghost Firearms
Caliber: 5.56x45mm NATO
Barrel Length: 16 in
Gas System Length: Carbine Length
Barrel Twist Rate: 1-7
Condition: New
Handguard Length: 14 in
Gun Rail: M-LOK
Magazine Included: No

Features of Ghost Firearms 5.56 NATO Complete Upper Receiver w/ Rifle Lower Parts Kit:

  • A2 flash hider/muzzle device
  • Chambered in 5.56 NATO
  • 1:7 Twist 4150 M4 Barrel
  • 16" Barrel Length
  • 14in Ghost Firearms Free Float M-LOK Rail
  • Carbine Length Gas System
  • Mil-Spec 7075-T6 Upper Receiver
  • Mil-Spec Lower Parts Kit
  • BCG and Charging Handle
  • Carbine Buffer Tube Assembly
  • Butt Stock
  • Made in the USA

Package Contents:

  • Ghost Firearms 5.56 NATO Complete Upper Receiver w/Rifle Lower Parts Kit

Ghost Firearms 5.56 Complete Upper Receiver w/ Rifle Lower Parts Kit Orderable Models

List of Orderable Models

  • Ghost Firearms Complete Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Butt Stock, 4150 M4 Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Muzzle Device, Black, GF16E14GFR556BLK-KIT , MPN: GF16E14GFR556BLK-KIT , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556BLK-KIT
  • Ghost Firearms Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Carbine , 4150 Moly Steel Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Flash Hider, Burnt Bronze, GF16E14GFR556BB-KIT , MPN: GF16E14GFR556BB-KIT , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556BB-KIT
  • Ghost Firearms Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Butt Stock, 4150 M4 Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Muzzle Device, Tactical Grape, GF16E14GFR556GRP-KIT , MPN: GF16E14GFR556GRP-KIT , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556GRP-KIT
  • Ghost Firearms Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Carbine , 4150 Chrome Moly Steel Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Flash Hider, FDE, GF16E14GFR556FDE-KIT , MPN: GF16E14GFR556FDE-KIT , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556FDE-KIT
  • Ghost Firearms Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Carbine , 4150 Chrome Moly Steel Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Flash Hider, OD Green, GF16E14GFR556OD-KIT , MPN: GF16E14GFR556OD-KIT , UPC: 2993935 , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556OD-KIT

Ghost Firearms 5.56 Complete Upper Receiver w/ Rifle Lower Parts Kit Unavailable & Discontinued Models

List of Unorderable Models

  • Ghost Firearms Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Carbine , 4150 Moly Steel Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Flash Hider, Tungsten Gray, GF16E14GFR556TG-KIT , MPN: GF16E14GFR556TG-KIT , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556TG-KIT
  • Ghost Firearms Upper Receiver, Rifle Lower Parts Kit, 5.56mm, 16in, Carbine , 4150 Moly Steel Barrel, 1-7 Twist, 14in M-LOK Free Float Hand Guard, A2 Flash Hider, Blue Titanium, GF16E14GFR556BT-KIT , MPN: GF16E14GFR556BT-KIT , Code: 3Q0-UFH-556RIFLE-GF16E14GFR556BT-KIT
Compare (0)