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Stern Defense SD MOD5 M-Lok Handguards
As Low As $91.99 Save Up to 25%
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Most Helpful Positive Review Stern Defense Handguard
Exactly as I expected, love it, was less expensive on Optics Planet vs Stern Defense website. Fit AR build fine and no modifications needed would recommend to all considering this for their next AR build
Most Helpful Negative Review Requires the use of it's own proprietary barrel nut.
The handguard requires you to use it's barrel nut. So if you want to just swap out the handguard it will not fit. Especially if you are using a PSA upper. Beyond that it was a nice handguard. Too bad I have to return it
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Factory box looked returned

by Made it work, Verified Owner from MO, United States Written on September 6, 2025
As title says, the box this item came in was taped shut with packing tape. Later I discovered the handguard was missing screws, this was the last part I needed for my .338 ARC build, so I ordered the size screws it appeared to need, and finished the build.
Pros:
  • It was the length I needed
Cons:
  • Returned part, missing hardware
Best Used for:
  • 9 inch barrel
Would recommend: Yes
Was it helpful to you? Yes | No

Ar 15 hand guard

by A. Mabry, Verified Owner from KY, United States Written on June 8, 2024
Ordered this for my 300 blackout. Fit and finish were very nice.
Would recommend: Yes
Was it helpful to you? Yes | No

ar 15 hand guard

by A. Mabry, Verified Owner from KY, United States Written on June 8, 2024
Ordered this hand guard for my 300 blackout. Fit and finish are very nice.
Would recommend: Yes
Was it helpful to you? Yes | No

8.5 inch barrel ar 15.

by A. Mabry, Verified Owner from KY, United States Written on June 8, 2024
Really nice looking and fitting hand guard. Added it to my 300 blackout rifle.
Would recommend: Yes
Was it helpful to you? Yes | No

Looks great! But... and it's a BIG but

by Will, Verified Owner from WI, United States Written on October 6, 2021
So the first issue was the lack of the barrel nut wrench it isn't a huge deal but oh well. So once you find the correct wrench you finally get to the install and timing process. I tried every combination of shims they send and nothing would even get it close... So I just lined it up so I could test fit the gas tube. That would not clear the barrel nut even if I could time it correctly. So after a little love from file I got it all to fit correctly and torqued to spec. The handguard looks great and is great quality but the barrel nut is the worst design I have seen... I couldn't in good faith recommend this to anyone..
Pros:
  • good price
  • Looks great
Cons:
  • Barrel nut is junk
Would recommend: No
Was it helpful to you? Yes | No

Nice Piece

by Michael Smith II, from NC, United States Written on November 18, 2020
Great piece, very comfortable, good look and function, very affordable. Fits great with my 8.5 inch barrel. Only wish it came with a barrel nut wrench. Contacted the company and they were out of stock. Their customer service was very helpful, professional and informative. Will definitely be buying more Stern Defense items. Other then no wrench, 5 stars all the way!
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Stern Defense SD MOD5 M lok handguard 8”

by Jeff Meador, Verified Owner from AL, United States Written on October 12, 2020
Stern Defense SD MOD5 M lok handguard 8” I used on pistol build. 8.5” barrel left enough room to install flash hider. I gave it 3 stars because I could not time it enough to not touch gas tube. The barrel nut is too tall which puts upper pressure on gas tube. It was difficult to get the gas tube passed the barrel but during installation. Not sure how this will affect barrel harmonics but it goes against what I think is correct for accuracy. Need to take to the range to see if I need to change it out.
Pros:
  • Nice looking
  • Afffordable
Cons:
  • None
Would recommend: No
1 of 4 found the following review helpful.
Was it helpful to you? Yes | No
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