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Questions & Answers
Will this fit on an Alexander Arms 6.5 Grendel Expert Answer

Yes, the STNGR HWK M-Lok Free Float Handguard will work with an Alexander Arms 6.5 Grendel. Just be sure to use a low profile gas block and if your receiver is a billet receiver the manufacturer states there may need to be some modifications for it to fit.

by Hunter, Gear Expert, February 3, 2022
Is this the kit shown with new gas block and all 8 pieces in the picture? Expert Answer

The STNGR HWK AR15/M4 M-Lok Free Float Handguards do not come with a gas block but come with the parts displayed in the picture. Please email us at techsales@opticsplanet.com regarding your question.

by Hunter, Gear Expert, February 7, 2023
Customer Reviews
Helpful Positive Review Awesome Handguard! by James Williams, Verified Owner, February 14, 2025
I purchased the 15in and I love it. This handguard is easy to install, very sturdy, and it looks and feels great. Solid construction with a very secure fit, with absolutely no movement or rotation whatsoever. I’ve shot about 600 rounds with this so f...
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1/1 found this helpful
Helpful Positive Review STNGR BABY! by JD, October 5, 2023
This is a great rail from what appears to be a great company! I definitely recommend this product and other STNGR products.
1/1 found this helpful
Helpful Positive Review Very nice handguard by TomT, Verified Owner, June 21, 2023
I bought this because I liked the openness of the handguard, which has helped with barrel cooling. It came packaged in a stout box along with M-Lok slots along the full length, at 3, 6 & 9 o'clock, directions, a sticker, Barrel Nut, Crows Foot (for...
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3/3 found this helpful
Helpful Positive Review Most illest Handguard by Joshua, Verified Owner, December 13, 2022
The most illest handguard that gives your AR 15 the look it was missing. It’s aggressive yet smooth and buttery. Very lightweight, strong and durable. Installation is super easy even for a beginner just have to have a few tools. I have 2 of the STNGR...
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3/3 found this helpful
Helpful Positive Review STNGR Hwk Handgaurd.. by KoraBear, November 7, 2021
These handgaurds are assume, I cant say enough about them I have them on 3 of my builds. Ecomical and sturdy. Form, Fit , and function is right on anti, rotation tabs and B/Nut lock and no gas tube indexing hassles. They flat work and LOOK Great,...
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1/1 found this helpful
Helpful Positive Review Good quality handgaurd for the price… by Greg Ross, June 25, 2021
I have two of them, One on a 300blk out and another on my Aero EPC. Love both and they have a great customer service department. Would definitely order again from them. I have the 7in HWK on both very creative/different look.
3/3 found this helpful
Read All 41 Reviews

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Product Info for STNGR HWK AR15/M4 M-Lok Free Float Handguard

Install this STNGR HWK M-Lok Free Float Handguard for AR15/M4 to expand the range of your weapon with zero hassle. STNGR crafted these AR Handguards & Forends with multiple anti-rotation tabs to prevent handguard slide and a M-Lok platform that allows you to easily install accessories. The STNGR HWK Free Float Rifle Handguard features numerous machining enhancements to keep weight at a minimum, provide ventilation, and create the easiest installation procedure possible. With M-Lok slots, you can attach a variety of accessories to this free-floating handguard which is also lightweight. For increased durability, the STNGR HWK Free Float Tactical Handguard has a steel barrel nut that locks the handguard in place so that it won't slide off or anywhere else. If you need a reliable and lightweight handguard, the STNGR HWK M-Lok Handguard for AR-15/M4 is the perfect addition to your firearm.image

Specifications for STNGR HWK AR15/M4 M-Lok Free Float Handguard:

Manufacturer: STNGR
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Handguard Type: Free-Float
Gas System Length: Carbine Length
Condition: New
Inner Diameter: 1.35 in

Features of STNGR HWK AR15/M4 M-Lok Free Float Handguard

  • Incredibly simple installation. The HWK, with its simple non-timing barrel nut, was engineered to be the easiest handguard to install on the market. Perfect for first time builders and seasoned gunsmiths alike. No hassle, no frustration, no previous experience required. Simple.
  • Locking anti-slide plate. The HWK solves a problem that plagues most rails on the market - handguard sliding. With their proprietary anti-slide plate that interfaces with a groove in the barrel nut, the HWK is locked to the upper - ensuring that it won't go anywhere.
  • Anti-rotation tabs. Forward sliding is a problem that's solved with the anti-slide plate, but what about lateral rotation? The HWK has built in anti-rotation tabs to prevent any kind of rotation. By combining the anti-slide plate and anti-rotation tabs, the result is a rock solid fit - no matter how hard you run it.
  • Lightweight, increased ventilation. Aggressive machining cuts throughout the rail serve 3 critical functions: 1) Significantly slash excess weight 2) Increase ventilation to cool both your handguard and barrel 3) Steep angles prevent fingers from sliding into grooves.

Package Contents:

  • STNGR HWK AR15/M4 M-Lok Free Float Handguard
  • Standard

STNGR HWK AR15/M4 M-Lok Free Float Handguard Orderable Models

List of Orderable Models

STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 7in, 7HM , MPN: 7HM , UPC: 850032161091 , Code: 4MB-HZ-STNGR7-7HM
STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 15in, 15HM , MPN: 15HM , UPC: 850032161060 , Code: 4MB-HZ-STNGR7-15HM
STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 13.5in, 13HM , MPN: 13HM , UPC: 850032161077 , Code: 4MB-HZ-STNGR7-13HM
STNGR HWK M-Lok Free Float Handguard, AR15/M4, 10in, Cerakote, Magpul FDE, 10HM-FDE , MPN: 10HM-FDE , UPC: 850032161374 , Code: 4MB-HZ-STNGR7-10HM-FDE
STNGR HWK M-Lok Free Float Handguard for AR15/M4, Cerakote FDE, 15in, 15HM-FDE , MPN: 15HM-FDE , UPC: 850032161053 , Code: 4MB-HZ-STNGR7-15HM-FDE
STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 10in, 10HM , MPN: 10HM , UPC: 850032161084 , Code: 4MB-HZ-STNGR7-10HM
STNGR HWK M-Lok Free Float Handguard, AR15/M4, 7in, Cerakote, Magpul FDE, 7HM-FDE , MPN: 7HM-FDE , UPC: 850032161381 , Code: 4MB-HZ-STNGR7-7HM-FDE
STNGR M-Lok Free Float Handguard for AR15/M4, Cerakote FDE, 13.5in, 13HM-FDE , MPN: 13HM-FDE , UPC: 850032161343 , Code: 4MB-HZ-STNGR7-13HM-FDE

STNGR HWK AR15/M4 M-Lok Free Float Handguard Unavailable & Discontinued Models

List of Unorderable Models

USED, STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 7in, 7HM , MPN: 7HM-EDEMO , Code: 4MB-HZ-STNGR7-7HM-EDEMO-SC-B
USED STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 10in, 10HM, EDEMO2, Condition Fair, Other , MPN: 10HM-EDEMO2 , Code: 4MB-HZ-STNGR7-10HM-EDEMO-OT-D
USED STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 7in, 7HM, EDEMO3, Condition Parts Only/Salvage, Defective , MPN: 7HM-EDEMO3 , Code: 4MB-HZ-STNGR7-7HM-EDEMO-DF-F
USED, STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 10in, 10HM , MPN: 10HM-EDEMO , Code: 4MB-HZ-STNGR7-10HM-EDEMO-IN-D
USED STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 13.5in, 13HM, EDEMO3, Used, Condition Fair , MPN: 13HM-EDEMO3 , Code: 4MB-HZ-STNGR7-13HM-EDEMO3
DEMO, STNGR HWK M-Lok Free Float Handguard for AR15/M4, Anodized Black, 13.5in, 13HM , MPN: 13HM-DEMO , Code: 4MB-HZ-STNGR7-13HM-DEMO
DEMO, STNGR HWK M-Lok Free Float Handguard, AR15/M4, 10in, Cerakote, Magpul FDE, 10HM-FDE , MPN: 10HM-FDE-DEMO , Code: 4MB-HZ-STNGR7-10HM-FDE-DEMO
DEMO, STNGR HWK M-Lok Free Float Handguard for AR15/M4, Cerakote FDE, 15 in, 15HM-FDE , MPN: 15HM-FDE-DEMO , Code: 4MB-HZ-STNGR7-15HM-FDE-DEMO
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