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Geissele Super Modular Handguard Rail M-LOK MK8
$306.00 $286.99 Save $19.01
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Most Helpful Positive Review Geissele hangaurd
Product came in promptly looks great. I have not yet installed the hand guard. Another nice feature I didn't realize is that the hand guard comes with the wrench for tightening the barrel nut. The finish on the hand guard is a nice color and seems to be a rugged finish also.
Most Helpful Negative Review you dont get what you paid for
It’s ridiculous that you pay a lot of money for a rail and it don’t even come with the main part to build your ar with. Wrench not included, gas block not included, merch not included, not even a sticker? Geissele is becoming a joke and for the money people are paying and investing they should at le...
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Second Geissele rail

by Kj, Verified Owner from MI, United States Written on September 27, 2025
I own the mk7 rail as well. Bought this rail to lighten up my rifle a bit. Still plenty solid. Same mounting system. Reminds me of the mounting platform on the m27 iar. Only rails I’m interested in using anymore.
Pros:
  • Strong
Cons:
  • Not cheap
Best Used for:
  • professional use
Would recommend: Yes
Was it helpful to you? Yes | No

fast shipping & awesome product

by J, Verified Owner from CA, United States Written on January 23, 2025
Fast shipping and quality product, handguard is well made with no issues. Only problem is the handguard didn't come with a barrel nut wrench, which I dont understand why geissele no longer provides. All in all im happy with it and goes well with my build.
Would recommend: Yes
Was it helpful to you? Yes | No

Geissele MK8

by Jeff Zierler, Verified Owner from MI, United States Written on December 17, 2024
Well built fit and finish is awesome wanted a thicker hand guard, and this fit the bill
Pros:
  • Rigid and well built
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

mk8 geissele handguard

by KrackiN, Verified Owner from KS, United States Written on March 13, 2024
Super sturdy rail, the barrel nut needs a specific geissele brand barrel nut wrench, but other than that, this hand guard is amazing. Barrel nut gets torqued down then 2 bolts are basically "pinning" the hand guard the the nut. Then there are 2 set screws on the side to keep it aligned
Pros:
  • Well constructed
  • Sturdy & supportive
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

mk8 geissele handguard

by KrackiN, Verified Owner from KS, United States Written on March 13, 2024
This hand guard is top notch, need a barrel nut wrench to install it though specifically the geissele brand. The barrel nut is snug in the hand guard and 2 bolts hold the rail to the barrel nut. Super sturdy and looks great.
Pros:
  • Sturdy & supportive
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Always outstanding.

by Max, from WA, United States Written on January 26, 2022
Geissele quality is always extremely consistent. I ordered this rail for my 16” gun to move weight back toward me a bit and to balance the rifle a bit better. I was previously running a 15” mk4 rail and the barrel nut is the same. Makes for an extremely easy swap without having to refit the barrel and re-zero. Geissele mk4/mk8 barrel nuts are interchangeable. Mk14/mk16 are interchangeable with one another as well. Hope this helps.
Pros:
  • Fit
  • Finish
  • Durabilaty
Cons:
  • None
Best Used for:
  • Heavy use or any situation where reliability is required
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Best rails hands down

by VA Trav, Verified Owner from GA, United States Written on August 4, 2021
Have many diff rails but Geissele continues to stand out and above the crowd buy with total confidence. Easily the most rugged rails I own. I don’t take it easy on them and anything mounted dot them always stays zeroed
Pros:
  • Rugged sturdy great fit and finish
Cons:
  • As with anything Geissele PRICE
Would recommend: Yes
Was it helpful to you? Yes | No

Absolutely Fantastic as always - Requires modification for Wilson Combat billet uppers

by Rick Vestal, Verified Owner from CO, United States Written on July 23, 2021
I expected to have some trimming mating this with a billet upper, specifically Wilson Combat. The fit is close and just requires a few mm cut off the ears to clear. The anti rotation ears are still functional. Like Wilsom Combats handguards, this uses a 30mm wrench with the tab which many may have already but if not, you'll have to purchase it separately. Mine unfortunately did not come with the gas block or the swag but I'm using the Wilson low profile block and it clears fine. Overall, great stuff and it's as solid as I would expect. Optics Planet came thru on shipping yet again!
Pros:
  • Fit and finish
  • No indexing of the barrel nut
Cons:
  • Some modification required for billet uppers
Would recommend: Yes
Was it helpful to you? Yes | No

Rugged rail, super clean`

by KIRKN8R, Verified Owner from AZ, United States Written on April 8, 2021
This is my favorite rail. Its not very heavy and is very rigid. Oh, its Geissele so there is that. The fit and finish on my 14.5 is superb and this sits on my SHTF rifle. I would trust this rail with my life and will buy no other rails from now on. Just wish it fit on my BCM MK2 rail:(
Pros:
  • Clean, rigid, attractive
Cons:
  • little heavier but not much
Best Used for:
  • tactical, sport, plinking
Would recommend: Yes
Was it helpful to you? Yes | No

Freaking awesome

by Timothy Willis, Verified Owner from NC, United States Written on July 31, 2018
The rail is great and living on a 14.5" AR now. Sturdy while not being overly heavy. Highly recommend. The price was more than amazing considering it being on sale and having a 20% off promo with free shipping. I received my purchase in less than a week and couldn't be more pleased.
Pros:
  • Sturdy
  • Aestetically pleasing
Cons:
  • None
Best Used for:
  • 14.5 pinned to 16
Would recommend: Yes
Was it helpful to you? Yes | No
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