to Favorites
1 of 10
2 of 10
3 of 10
4 of 10
5 of 10
6 of 10
7 of 10
8 of 10
9 of 10
10 of 10
Your Session is Ending
The server has not detected any activity for the last 3 hours.
For your security, your session will expire in 2 minutes and you will be redirected to the Sign In page.
Would you like to stay signed in?
UNFIRED Factory H&K MR556, 10.4" CQB Complete Upper Receiver, Adjustable Gas Block, Quad Rail, Surefire Flash Hider - TDyer Gunsmith
UNFIRED Factory H&K MR556, 10.4" CQB Complete Upper Receiver, Adjustable Gas Block, Quad Rail, Surefire Flash Hider - TDyer Gunsmith
Click Photo to Enlarge
Guns International #: 102856817
Category - Gun Parts - Class III
- Gun Parts - AR-15 Upper
Seller's Information
When emailing or calling sellers direct,
please mention that you saw their listing on GunsInternational.com
Seller: Side Arm Sams
Member Since: 10/17/24
State:
Florida
Zip: 33066
Country: United States
Phone:
(954) 960-2596
Active Listings: 0
Total Listings: 52
Seller Type: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
Payment Methods: Cashiers Check, Money Order, Company & Personal Check, Zelle, All Major Credit Cards
About Us: We are a Brick and Mortar Class III dealer located in South Florida since 1998.You can visit our Site at sidearmsams for easy & safe credit card processing. We accept all major credit cards on-line.
UNFIRED Factory H&K MR556, 10.4" CQB Complete Upper Receiver, Adjustable Gas Block, Quad Rail, Surefire Flash Hider - TDyer Gunsmith
Description:
HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith
NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022.
Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB
Sling Loops but they are Included on this upper – See Additional Pics for that detail.
This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function.
Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″.
Ready for your Short Barrel Rifle or Pistol Build.
ALL NFA RULES APPLY.
SOLD
Rifle Caliber: 5.56x45mm NATO
Description:
HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith
NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022.
Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB
Sling Loops but they are Included on this upper – See Additional Pics for that detail.
This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function.
Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″.
Ready for your Short Barrel Rifle or Pistol Build.
ALL NFA RULES APPLY.
SOLD
Rifle Caliber: 5.56x45mm NATO
|
Click Photo to Enlarge
|
Guns International #: 102856817
Category - Gun Parts - Class III
- Gun Parts - AR-15 Upper
Seller's Information
When emailing or calling sellers direct,
please mention that you saw their listing on GunsInternational.com
Seller: Side Arm Sams
Member Since: 10/17/24
State:
Florida
Zip: 33066
Country: United States
Phone:
(954) 960-2596
Active Listings: 0
Total Listings: 52
Seller Type: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
Payment Methods: Cashiers Check, Money Order, Company & Personal Check, Zelle, All Major Credit Cards
About Us: We are a Brick and Mortar Class III dealer located in South Florida since 1998.You can visit our Site at sidearmsams for easy & safe credit card processing. We accept all major credit cards on-line.
UNFIRED Factory H&K MR556, 10.4" CQB Complete Upper Receiver, Adjustable Gas Block, Quad Rail, Surefire Flash Hider - TDyer Gunsmith
Description: HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022. Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB Sling Loops but they are Included on this upper – See Additional Pics for that detail. This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function. Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″. Ready for your Short Barrel Rifle or Pistol Build. ALL NFA RULES APPLY. SOLD Rifle Caliber: 5.56x45mm NATO |
Click Photo to Enlarge
Guns International #: 102856817
Category - Gun Parts - Class III
- Gun Parts - AR-15 Upper
Seller's Information
When emailing or calling sellers direct,
please mention that you saw their listing on GunsInternational.com
Seller: Side Arm Sams
Member Since: 10/17/24
State:
Florida
Zip: 33066
Country: United States
Phone:
(954) 960-2596
Active Listings: 0
Total Listings: 52
Seller Type: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
Payment Methods: Cashiers Check, Money Order, Company & Personal Check, Zelle, All Major Credit Cards
About Us: We are a Brick and Mortar Class III dealer located in South Florida since 1998.You can visit our Site at sidearmsams for easy & safe credit card processing. We accept all major credit cards on-line.
UNFIRED Factory H&K MR556, 10.4" CQB Complete Upper Receiver, Adjustable Gas Block, Quad Rail, Surefire Flash Hider - TDyer Gunsmith
Description:
HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith
NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022.
Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB
Sling Loops but they are Included on this upper – See Additional Pics for that detail.
This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function.
Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″.
Ready for your Short Barrel Rifle or Pistol Build.
ALL NFA RULES APPLY.
SOLD
Rifle Caliber: 5.56x45mm NATO
Description:
HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith
NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022.
Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB
Sling Loops but they are Included on this upper – See Additional Pics for that detail.
This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function.
Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″.
Ready for your Short Barrel Rifle or Pistol Build.
ALL NFA RULES APPLY.
SOLD
Rifle Caliber: 5.56x45mm NATO
Guns International #: 102856817
Guns International #: 102856817
Category - Gun Parts - Class III
- Gun Parts - AR-15 Upper
Seller's Information
When emailing or calling sellers direct,
please mention that you saw their listing on GunsInternational.com
Seller: Side Arm Sams
Member Since: 10/17/24
State:
Florida
Zip: 33066
Country: United States
Phone:
(954) 960-2596
Active Listings: 0
Total Listings: 52
Seller Type: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
Payment Methods: Cashiers Check, Money Order, Company & Personal Check, Zelle, All Major Credit Cards
About Us: We are a Brick and Mortar Class III dealer located in South Florida since 1998.You can visit our Site at sidearmsams for easy & safe credit card processing. We accept all major credit cards on-line.
UNFIRED Factory H&K MR556, 10.4" CQB Complete Upper Receiver, Adjustable Gas Block, Quad Rail, Surefire Flash Hider - TDyer Gunsmith
Description:
HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith
NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022.
Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB
Sling Loops but they are Included on this upper – See Additional Pics for that detail.
This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function.
Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″.
Ready for your Short Barrel Rifle or Pistol Build.
ALL NFA RULES APPLY.
SOLD
Rifle Caliber: 5.56x45mm NATO
Description:
HK-MR556A1 Complete CQB Upper Receiver 10.4″ Barrel, HK Adjustable Gas Block, “Warcomp” Socom F/H & Factory HK Quad Rail by TDyer Gunsmith
NEW & UNFIRED is a Factory HK-MR556A1 CQB Complete Upper Receiver,10.4″ Barrel With a Factory HK Adjustable Gas Block and More. New Production Date Code (CD) – 2022.
Barrel was Cut & Crowned to 10.4″ and Threaded 1/2 X 28 by TDyer Gunsmith. Barrel Gas Port was relieved for a Factory German HK-416 2-Position Adjustable Gas Block With Sling Loops, for Suppressed & Unsuppressed Cycling. Includes a Factory German HK 9″Inch HK416 T-Marked Quad Rail Hand Guard that was Modified with a Cut-out for Access to the Adjustable Gas Block and a Surefire “Warcomp” 3-Prong Socom Flash Hider/Suppressor Mount. File Pics Shows w/o AGB
Sling Loops but they are Included on this upper – See Additional Pics for that detail.
This New & Unfired Factory Upper Receiver Comes Complete with the Factory Charging Handle & Complete Factory MR556 Bolt Carrier Group for a Complete Drop-in Plug-n-Play Unit. Test Fired in both Configurations by Terry Dyer Gunsmith Only for Function.
Includes a “Certificate of Authenticity” with Serial Number from TDyer Gunsmith for the Upper Receiver Conversion to 10.4″.
Ready for your Short Barrel Rifle or Pistol Build.
ALL NFA RULES APPLY.
SOLD
Rifle Caliber: 5.56x45mm NATO
Guns International Advertising Policy
GunsInternational.com is the #1 Gun Classified website that brings gun buyers and gun brokers or sellers together through classified advertising of guns, gun related items and services for sale online. If you are looking to buy guns online or sell guns online, you have come to the right place. GunsInternational.com gun classifieds currently have over 200,000 guns for sale online by numerous dealers and collectors alike. Guns International makes no representation or warranty as to the accuracy of the information contained in the gun classifieds, gun parts or gun services classifieds listings. Buyers and sellers are required to know and comply with all applicable local, state, federal and international firearm laws.
GunsInternational.com is the #1 Gun Classified website that brings gun buyers and gun brokers or sellers together through classified advertising of guns, gun related items and services for sale online. If you are looking to buy guns online or sell guns online, you have come to the right place. GunsInternational.com gun classifieds currently have over 200,000 guns for sale online by numerous dealers and collectors alike. Guns International makes no representation or warranty as to the accuracy of the information contained in the gun classifieds, gun parts or gun services classifieds listings. Buyers and sellers are required to know and comply with all applicable local, state, federal and international firearm laws.
Listings
Home
New Today
New This Week
Rifles For Sale Online
Shotguns For Sale Online
Handguns For Sale Online
Pistols For Sale Online
Revolvers For Sale Online
NFA
Gun Parts For Sale Online
Services
Home
New Today
New This Week
Rifles For Sale Online
Shotguns For Sale Online
Handguns For Sale Online
Pistols For Sale Online
Revolvers For Sale Online
NFA
Gun Parts For Sale Online
Services
©2006 - 2025 all rights reserved. | Guns International.com | V4.1 ww1
Privacy Policy
User Agreement
FAQs
Contact Us
Careers
©2006 - 2025 all rights reserved.
Guns International.com | V4.1 ww1
Guns International.com | V4.1 ww1