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OSO Mighty Collars

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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 4.4 out of 5 by 43.
Rated 4 out of 5 by from Sufficient I bought a pair of these for my home gym. I have been using them for about a month. They hold well but they do seem to allow a little wobble from the plates. I would venture this is due to their small diameter. They don’t cover much more than the collar of the plates.
Date published: 2019-06-07
Rated 5 out of 5 by from Very happy - intermediate weight/skill I was concerned at first having read several reviews that mention the collars have trouble sliding on and off the bar bell. Thus far I've had no issues - make sure when loosing the collar, you fully release the tension which requires using both hands, then simply slide them off. They also do a great job keeping your weight secure, so far up to 260lbs which is the max weight I have at my home gym. Cannot speak to anything above that.
Date published: 2019-05-24
Rated 5 out of 5 by from Light, but strong I bought these primarily to secure bumpers to a set of farmer's carry handles I bought. They work beautifully and reliably secure 60 or 70 kg to a very low friction chrome post.
Date published: 2019-05-10
Rated 5 out of 5 by from Old blokes review. I have been using the Mighty collars for a couple of months now , I'll be buying more.They are so much easier to use 1 handed than my plastic cog type, which I need 2 hands to open far enough to remove . Also love the lower profile so easy 1 handed.
Date published: 2019-05-08
Rated 4 out of 5 by from Overall good collar I've been having problems with this collar locking down on certain parts of my bar. At first I thought it was the collar already wearing out. But after looking at it in detail I realized that it's my bar on one side about two 45s out. It must be just a tad thinner on that side. I feel like a 5 star collar wouldn't have a problem with this. But it is a low end bar that I'll probably need to get a different style collar for when I'm lifting heavy. I would recommend this for anyone that has a quality bar they intend to use it on.
Date published: 2019-05-08
Rated 5 out of 5 by from very strong clamping feature This are much better than the plastic collars . A bit stiff to get on the bar , they will wear in . Clamp on/off is crisp .
Date published: 2019-04-27
Rated 3 out of 5 by from They work great for now Absolutely wonderful budget collars. They've stood up to dropping bars from overhead positions with no budge. The only issue I forsee is that the only thing that secures these clips onto the collar is the friction from the locking handle. The locking handle however is made of a dense plastic which will probably wear out over time, making these eventually useless. But for the price, they're excellent.
Date published: 2019-04-19
Rated 5 out of 5 by from Great price, better quality Easy to put on and take off, plates don’t budge during lifts or wods
Date published: 2019-02-13
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