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Questions & Answers
Will this fit over a gen 1 Sig 516 that has the bayonet lug on the gas block Expert Answer

This is meant to mount to a standard Sig 516 and replace the factory handguard. The extended model will fit around the gas block while the shorter model will fit behind the gas block. Carbine length is 7.25 inches while Extended is 13.1 inches.

by Ryan Tarczynski, Gear Expert, December 9, 2020
is this the "new" version that utilizes "M-lok" slots and not the Lancer proprietary slots? Expert Answer

Yes, this handguard will accept m-lok accessories.

by Armando R., Gear Expert, September 13, 2019
Customer Reviews
Helpful Positive Review Impressive product by brain, Verified Owner, April 13, 2023
Fit beautifully on my Sig 516. Nicely lightweight and rigid. Extends hand-guard for better purchase and allows for more room for accessories. Looks great too. Surprised by how robust the carbon fiber seems.
1/1 found this helpful
Helpful Positive Review It's all about weight distribution i.e. center of gravity by Scott S, Verified Owner, December 15, 2021
My complaint with the stock Sig 516 is the forward weight of the firearm... it's forward heavy, not balanced. This thing is fantastic. When mounted It feels great in the hand. The carbon fiber, fit and finish is quality stuff. It's not substantia...
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3/3 found this helpful
Helpful Positive Review Great Upgrade by Dale Pricher, April 26, 2017
I have owned the Sig 516 for about four years. I love this Carbine with it's gas piston operating system !! Very accurate smooth handling and Sig standing behind the product. The "only" thing I did not like was the quad rail handguard. It was sho...
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20/20 found this helpful
Helpful Positive Review Works great, feels great, looks great! by Yoohoo, August 15, 2020
If you have a piston driven AR with a quad rail... The you are likely feeling a bit jealous of all the rail options that the DI boys and girls get to choose from. From what I have seen, this is just about your only option for a Sig 556 patrol but it’...
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2/2 found this helpful
Helpful Positive Review Great, but limitations by Dutch2848, October 7, 2018
As many have stated for fit and functionality, this is 5 stars. Not to mention the options for an aftermarket handrail is extremely limited. The biggest short fall is that to clean the piston you have to take the hand guard off. This doesn’t require ...
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6/6 found this helpful
Helpful Positive Review A lightweight upgrade that gets rid of the cheese-grater rails by TB, February 22, 2019
As the AR platform continues to develop, many of us are getting used to MLOK or Keymod rail systems that don’t require you to run rail covers or have the bulk associated with 1913 rails on all four sides PLUS rail covers. Lancer did a solid job deve...
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3/3 found this helpful
Read All 33 Reviews
2 Models Available
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Product Info for Lancer Replacement Handguard for Sig 516

Get a better grip on your rifle while enhancing its performance in the field with this Lancer Replacement Handguard for Sig 516. These Rifle Handguards designed by Lancer Systems feature cooling slots that ensure your firearm doesn't overheat. For advanced customization of your weapon, the Lancer Free Float Handguard for Sig 516 is crafted with M-LOK compatible slots for the attachment of lights, lasers and other accessories. Plus, the Picatinny sight rail up top is the perfect platform to host scopes and other optics that will increase your precision when putting shots on target. Grab a Lancer Sig516 Octagon Handguard to improve your shooting experience while expanding your customization options.image

Specifications for Lancer Replacement Handguard for Sig 516:

Manufacturer: Lancer Systems
Gun Make: SIG Sauer
Gun Model: SIG Sauer SIG 516
Color: Black
Gun Rail: Picatinny
Outer Diameter: 2 in
Inner Diameter: 1.7 in
Handguard Material: Carbon Fiber
Condition: New
Gun Type: Rifle
Quantity: 1
Fabric/Material: Carbon Fiber

Features of Lancer Replacement Handguard for Sig 516:

  • Free float design with an aluminum Picatinny sight rail at 12 o'clock and a octagon composite tube
  • M-Lok compatible slots allow for accessories
  • Extended handguard length
  • Full top rails

Package Contents:

  • Lancer Replacement Handguard for Sig 516

Lancer Replacement Handguard for Sig 516 Orderable Models

List of Orderable Models

Lancer Sig 516 - Replacement Handguard, Carbine Length With Top Rail LCH516-C-L , MPN: LSX-4X-B , UPC: 738435616762 , Code: 7UD-FO-LRHS516-LCH516-C-L
Lancer Sig 516 - Replacement Handguard, Extended Length With Top Rail LCH516-CX-L , MPN: LSX-5X-B , UPC: 738435616779 , Code: 7UD-FO-LRHS516-LCH516-CX-L

Lancer Replacement Handguard for Sig 516 Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Lancer Sig 516 - Replacement Handguard For Sig 516, Carbine Length With Top Rail LCH516-C-L , MPN: LCH516-C-L-DEMO , Code: 7UD-FO-LRHS516-LCH516-C-L-DEMO
USED, Lancer Sig 516 - Replacement Handguard, Extended Length With Top Rail LCH516-CX-L , MPN: LSX-5X-B-EDEMO , Code: 7UD-FO-LRHS516-LCH516-CX-L-EDEMO-US-U
USED Lancer Sig 516 - Replacement Handguard For Sig 516, Extended Length With Top Rail LCH516-CX-L, EDEMO1, Used, Condition Like New , MPN: LCH516-CX-L-EDEMO1 , Code: 7UD-FO-LRHS516-LCH516-CX-L-EDEMO1
DEMO, Lancer Sig 516 - Replacement Handguard For Sig 516, Extended Length With Top Rail LCH516-CX-L , MPN: LCH516-CX-L-DEMO , Code: 7UD-FO-LRHS516-LCH516-CX-L-DEMO
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