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Questions & Answers
what is the difference between Gridlock Lite vs Gridlock complete assembly? Expert Answer

The Strike Industries Grildlok LITE Handguard Assembly takes innovation from GRIDLOK, but this is a 1-piece design to minimize weight and offer a cost-effective option.

by Ethan, Gear Expert, July 18, 2023
Will this fit a Sharps bros Showdown billet receiver? Expert Answer

Yes, the Strike Industries Grildlok LITE Handguard Assembly would not make contact with the magwell of the Sharps Bros Showdown lower receiver.

by Ethan, Gear Expert, June 6, 2023
Customer Reviews
Helpful Positive Review Graat handguard! by Joe, Verified Owner, November 20, 2024
Love this guard. Purposed it so I could have easy access to the adjustable gas block because I run a suppressor on my AR’s, this hand guard works great. Super strong, light weight and has never come loose after putting several thousand rounds through...
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2/2 found this helpful
Helpful Positive Review BUIS is worthless by Adam Tn, December 24, 2021
Purchased this for a SBR build and I was needed access to the SI cagb (Adjustable gas block)and this fits the bill. Looks clean it's a little longer than 8.5in just enough I didn't believe a can direct thread can would fit. 9in barrel. The BUIS is ab...
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2/2 found this helpful
Helpful Positive Review The product is of high quality by Kidchanayod Akkapram, Verified Owner, November 3, 2022
The product is of high quality. and i like it very much great material easy installation Allows me to disassemble the handguard in very little time. I recommend for Friends looking for a strong handguard that is easy to disassemble. and inexpe...
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1/2 found this helpful
Helpful Positive Review Nice handguard by Jrod, Verified Owner, February 17, 2022
I love this handguard looks great, has nice edges and machining. Has the easy removal lever for quick removal for adjustments. I have the strike industries oppressor inset some looks awesome. i would recommend this handguard for anyone looking to upg...
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1/1 found this helpful
Helpful Negative Review strike industries gridlok lite by Jug, Verified Owner, October 15, 2024
I really like SI. Their products have never failed me until now. The barrel nut is un-timeable. Shims, no shims, it doesn’t matter. Now let’s just get it out of the way that I use shims between the handguard and barrel. But it’s to the mere 1/4” that...
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2/2 found this helpful
Most Recent Reviews Ar gridlock by Brisha, May 14, 2025
This grid lock is everything and more I love my purchase
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Strike Industries Extended Latch AR Charging Handle, AR-15, 5.56x45mm NATO, Black, One Size, SI-ARCH-EL-BK
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Product Info for Strike Industries Grildlok LITE AR-15 M-LOK Handguard Assembly

The Strike Industries GRIDLOK LITE Rail for AR-15 takes innovation from GRIDLOK but this is a 1-piece design to minimize weight and offer a cost-effective option. Using the same Patent Pending Quick Rail Detach system, only one of very few handguards on the market today that can be removed at home or in the field quickly without tools. With the Quick Rail detach system, a simple push and pull of the of the quick detach (QD) latch, you have the handguard off in seconds to make any adjustments to an adjustable gas block or installation/removal of a suppressor. The QD latch has also been redesigned with a new locking button for earlier latch locking. Integrated into the front of the GRIDLOK LITE is the built-in flip up backup iron sight (BUIS). Compatible with the M-LOK system at the 3, 6 and 9 oclock locations. In the rear of the handguard you will find a integrated 360 free swivel QD socket for a 2-point setup. Rear tabs with set screws at the top the SI GRIDLOK LITE help center the top rail to the upper receiver to ensure proper alignment. The cut in front was designed to help fit suppressors up to 1.57" (39.9mm) in diameter and of course all SI muzzle devises including the SI OPPRESSOR for those looking for that tucked look. The handguard is machined from 6061-T6 aluminum and the barrel nut is machined from 7000 series aluminum which excels in applications that require lightweight and high strength. The Strike Industries GRIDLOK LITE for AR-15 brings you features and improvements from big brother GRIDLOK but with a more lightweight and cost-effective option.image

WARNING: California`s Proposition 65

Specifications for Strike Industries Grildlok LITE AR-15 M-LOK Handguard Assembly:

Manufacturer: Strike Industries
Finish: Anodized
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Handguard Type: Free-Float
Gun Rail: M-LOK
Included Accessories: Standard
Mount Type: M-LOK
Quantity: 1

Features of Strike Industries Grildlok LITE Handguard Assembly

  • 1pc free float handguard design to minimize weight and a costeffective option
  • Same Patent Pending Quick Rail Detach system as GRIDLOK with redesigned locking button for easier QD latch locking
  • Builtin flip up front BackUp Iron Sight (BUIS)
  • Compatible with the MLOK system at the 3, 6 and 9 oclock locations
  • Integrated 360 free swivel QD socket at rear of handguard
  • Rear tabs with set screws help center top rail to upper receiver
  • Designed cut in front fits suppressors up to 1.57" (39.9mm) in diameter and all SI muzzle devices, including SI OPPRESSOR
  • Handguard machined from 6061T6 aluminum
  • Barrel nut machined from 7000 series aluminum which excels in applications requiring lightweight and high strength

Package Contents:

  • Strike Industries Grildlok LITE Handguard Assembly
  • x1 GRIDLOK LITE rail
  • x1 Barrel nut
  • x1 Barrel nut shim kit (4pcs)
  • x1 Optional antirotation set screws
  • x1 Barrel nut wrench
  • x1 Locking lever tool
  • x1 Hex tool (1.5mm)
  • x1 Loctite Threadlocker Blue 242
  • x1 Warning card

Strike Industries Grildlok LITE AR-15 M-LOK Handguard Assembly Orderable Models

List of Orderable Models

Strike Industries Grildlok LITE 8.5in Handguard Assembly, M-Lok, AR-15, Black, One Size, SI-GRIDLOK-LITE-8.5-BK , MPN: SI-GRIDLOK-LITE-8.5-BK , UPC: 793811764239 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-8-5-BK
USED, Strike Industries Grildlok LITE 8.5in Handguard Assembly, M-Lok, AR-15, Black, One Size, SI-GRIDLOK-LITE-8.5-BK , MPN: SI-GRIDLOK-LITE-8.5-BK-EDEMO , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-8-5-BK-EDEMO-RE-C
Strike Industries Grildlok LITE 11in Handguard Assembly, M-Lok, AR-15, Black, One Size, SI-GRIDLOK-LITE-11-BK , MPN: SI-GRIDLOK-LITE-11-BK , UPC: 793811764253 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-11-BK
Strike Industries Grildlok LITE 15in Handguard Assembly, M-Lok, AR-15, Black, One Size, SI-GRIDLOK-LITE-15-BK , MPN: SI-GRIDLOK-LITE-15-BK , UPC: 793811764277 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-15-BK
DEMO, Strike Industries Grildlok LITE 17in Handguard Assembly, Red, One Size, SI-GRIDLOK-LITE-17-RED , MPN: SI-GRIDLOK-LITE-17-RED-DEMO , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-17-RED-DEMO
Strike Industries Grildlok LITE 17in Handguard Assembly, M-Lok, AR-15, Black, One Size, SI-GRIDLOK-LITE-17-BK , MPN: SI-GRIDLOK-LITE-17-BK , UPC: 793811764291 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-17-BK
Strike Industries Grildlok LITE 11in Handguard Assembly, M-Lok, AR-15, Red, One Size, SI-GRIDLOK-LITE-11-RED , MPN: SI-GRIDLOK-LITE-11-RED , UPC: 793811764260 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-11-RED
Strike Industries Grildlok LITE 15in Handguard Assembly, M-Lok, AR-15, Red, One Size, SI-GRIDLOK-LITE-15-RED , MPN: SI-GRIDLOK-LITE-15-RED , UPC: 793811764284 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-15-RED
Strike Industries Grildlok LITE 17in Handguard Assembly, M-Lok, AR-15, Red, One Size, SI-GRIDLOK-LITE-17-RED , MPN: SI-GRIDLOK-LITE-17-RED , UPC: 793811764307 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-17-RED
Strike Industries Grildlok LITE 8.5in Handguard Assembly, M-Lok, AR-15, Red, One Size, SI-GRIDLOK-LITE-8.5-RED , MPN: SI-GRIDLOK-LITE-8.5-RED , UPC: 793811764246 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-8-5-RED

Strike Industries Grildlok LITE AR-15 M-LOK Handguard Assembly Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Strike Industries Grildlok LITE 8.5in Handguard Assembly, Black, One Size, SI-GRIDLOK-LITE-8.5-BK , MPN: SI-GRIDLOK-LITE-8.5-BK-DEMO , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-8-5-BK-DEMO
USED Strike Industries Grildlok LITE 11in Handguard Assembly, Black, One Size, SI-GRIDLOK-LITE-11-BK, EDEMO3, Used, Condition Like New , MPN: SI-GRIDLOK-LITE-11-BK-EDEMO3 , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-11-BK-EDEMO3
DEMO, Strike Industries Grildlok LITE 15in Handguard Assembly, Black, One Size, SI-GRIDLOK-LITE-15-BK , MPN: SI-GRIDLOK-LITE-15-BK-DEMO , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-15-BK-DEMO
DEMO, Strike Industries Grildlok LITE 17in Handguard Assembly, Black, One Size, SI-GRIDLOK-LITE-17-BK , MPN: SI-GRIDLOK-LITE-17-BK-DEMO , Code: 3Q-HZ-STI2904-SI-GRIDLOK-LITE-17-BK-DEMO

Proposition 65 Warning for California Consumers

For more information go to www.p65warnings.ca.gov

Notification

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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