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OSO Mighty Collars

Sold in Pairs

Special Price $27.50

Regular Price: $27.50

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OSO Mighty Collars
Multi Color

Collars are manufactured in Columbus, Ohio using aircraft-grade aluminum, OSO Mighty Collars offer many of the same benefits of the standard OSO Barbell Collar in an economically priced model.

These super lightweight collars—available here in Gun metal and Blue—are sold in pairs and equipped with a rubberized interior lining to protect the bar. OSO Mighty Collars deliver a secure, stable hold through repeated, high-impact drops, and allow easy adjustments or removal with a simple lever and lock/unlock mechanism.


  • Made in the USA
  • Designed to be used on 50MM Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminum
  • Black Rubberized interior lining to protect bar
  • Locking clamp mechanism for secure hold
  • Weight: 0.3LB
  • 2 Year Warranty*

Rogue fitness will warranty this product from defects in material, functionality and workmanship for a period of 2 years from the date of purchase of the product. The warranty applies only to the original purchaser of the product for so long as the original purchaser owns the product, and is non-transferable. Warranty may be voided for any product which has been damaged due to negligent or faulty use, alteration, maintenance, storage or handling by the user. Any specific issues regarding a Rogue product with which a customer is not satisfied will be reviewed on a case-by-case basis.Note: Rogue will continue to honor warranties on products purchased directly from OSO prior to Rogue's acquisition of OSO Barbell Collars on these same terms and conditions.

See Also: The exclusive Rogue OSO Barbell Collar

Also, check out the Specialty Collars

Gear Specs

Brand OSO
Made In USA Yes
Product Weight 0.3LB
Width 1.4"
OSO Mighty Collars is rated 4.3 out of 5 by 55.
Rated 1 out of 5 by from Less than a month Bought 10 pairs of these to see how they would do versus spring collars staying tighter (preserving bumpers) at our gym. Almost half of them broke in less than 1 month of use. Don't waste your $.
Date published: 2020-01-13
Rated 1 out of 5 by from Too thin No knock on Rogue the collars are as described I just don’t like how thin they are ordered the HG ones to replace them.
Date published: 2020-01-03
Rated 5 out of 5 by from Mighty Mights I bought these because the collars at my gym don't hold the plates tight after numerous drops. These have not dissappointed. They are easy to use and very light weight. The hold is great. Definititely a good buy for me.
Date published: 2020-01-01
Rated 4 out of 5 by from Reliable I bought these collars for my home gym, and I was not disappointed. I enjoy the look and feel of these collars compared to others. I haven't had any issues with these collars slipping or damaging my barbell. I would definitely recommend these for a budget home gym anytime.
Date published: 2019-12-25
Rated 5 out of 5 by from Great value (performance / $) Got these about a month ago -- my first pair of collars. Price is great, and I like the small form factor, too. Terrific performance during the CF Open -- no slipping or other problems. (Some reviewers said they are difficult to get on -- the key, as far as I can tell, is just ensuring the clip is completely open when moving on / off bar. You can unlock the clip, but it may not be completely open). Definitely recommend them.
Date published: 2019-11-07
Rated 5 out of 5 by from Great product Only thing to be cautious about is people complain about it being too tight. It’s like that for a reason... Just make sure clips totally up before sliding onto the bar and you will have no issues
Date published: 2019-08-30
Rated 3 out of 5 by from Do the job but hard to take on/off These are good collars, nice feeling good quality metal and pinch mechanism. However the lever to tighten and loosen is very cumbersome and annoying. It's a skinny little lever that requires a decent amount of force to sinche or undo, and basically requires two hands. Not a great design, they should make it fatter and wider so you can get a good grip on it.
Date published: 2019-08-20
Rated 5 out of 5 by from Fits my old school bar bell They hold great on my bar that is 40+ years old!!!
Date published: 2019-08-04
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