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

Q&A for SIG SAUER Sig516 Gen 2 Upper Receiver Assembly Complete — 8 Questions & 9 Answers

Name SIG SAUER Sig516 Gen 2 Upper Receiver Assembly Complete (5)
Currently Unavailable View Product
Please keep questions related to the product! If you have questions regarding availability, pricing, or shipping options for this item, please contact our customer service team.
Need an answer right now?
Contact us!
Continue As a Guest
Saving...
Sign In or Create an Account (optional)
Why use an OpticsPlanet.com account for my questions and answers?

Having an account with OpticsPlanet.com makes writing questions and answers even better! We’ll save all of your questions and answers in your account, provide you easy access to them, so you can see how the community has responded.

If you’d like to add a question without creating an account, you can proceed with filling out the fields on this form.

Show
Sort by
Filter by
Q
Robert, guest, from NM, United States, asked on January 13, 2022

Does it come with a bolt carrier

A
Answered by Geoff, member, from CO, United States, on January 27, 2022

Yes it does.

Was it helpful to you? Yes | No
Q
Mekus, member, from KY, United States, asked on January 22, 2023

Where was this made and is the 14,5inch version pinned and welded???

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on July 06, 2023

The SIG SAUER Sig516 Gen 2 Upper Receiver Assembly Complete is no longer available. However, the barrel is not pinned and welded. For information regarding where the SIG SAUER Sig516 Gen 2 Upper Receiver Assembly Complete was made I recommend contacting Sig Sauer.

Was it helpful to you? Yes | No
Q
Ray, guest, from PW, United States, asked on October 24, 2022

Is the barrel actually chrome lined? Other 516 Gen 2's are QPC (Nitride) barrel. Thanks!

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on October 27, 2022

The SIG SAUER Sig516 Gen 2 Upper Receiver Assembly features a chrome-lined chamber and bore and QPC barrel.

Was it helpful to you? Yes | No
A
Answered by Al, member, from PA, United States, on June 02, 2022

This works with regular ar15 lowers so I would say yes if all that stuff is standard ar15 parts

Was it helpful to you? Yes | No
Q
Joshua McCann Army Veteran, guest, from TN, United States, asked on January 30, 2022

Does the quad rail cover gas block or is it the short quad rail

A
Answered by Wayne Seipel, member, from WV, United States, on March 18, 2022

Yes, quad rail covers the gas block.

Was it helpful to you? Yes | No
Q
Pedro Gonzalez, member, from NC, United States, asked on January 20, 2022

Is the barrel cold hammer forged?

A
Answered by Nevertoomany895, member, from AZ, United States, on January 28, 2022

Yes it is CHF

Was it helpful to you? Yes | No
Q
Thomas, guest, from PA, United States, asked on January 04, 2022

Twist rate ?

A
Answered by Nevertoomany895, member, from AZ, United States, on January 28, 2022

Twist rate is 1/7

Was it helpful to you? Yes | No
A
Answered by Geoff, member, from CO, United States, on January 27, 2022

The FH is NOT pinned and welded. 14.5" barrel. Screw the AFT, Let's Go Brandon.

8 of 13 found the following answer helpful.
Was it helpful to you? Yes | No