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OSO Mighty Collars

OSO Mighty Collars

€25.00 €30.25 Incl. Tax

3 Ships Free Item

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OSO Mighty Collars

Designed and manufactured in Colorado 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—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
  • Color: Gun Metal
  • Weight: 0.3 lb.
  • 2 Year Warranty*

See Also: The exclusive Rogue OSO Barbell Collar

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.

Gear Specs

Brand OSO
Made In USA Yes
Color Gun Metal
Product Weight 0.3 lb.
Width 1.4"
OSO Mighty Collars is rated 4.4 out of 5 by 34.
Rated 4 out of 5 by from Functional but fiddly. It works well enough but it has a rubber liner and that grabs the bar a bit while you're putting it on and taking it off.
Date published: 2018-09-20
Rated 5 out of 5 by from Great for the price I started working out my 12 year old son and he struggled with the spring collars. The OSO collars are quick and easy.
Date published: 2018-07-31
Rated 2 out of 5 by from Wish I bought a different set These are too thin, hard to clip and unfortunately not something I can recommend. I bought a rack, weights and benches from Rogue, but wish I ordered a different set of clips. In fact, after 2 weeks of use I am so annoyed with these that I just ordered a different set of clips. Hopefully they will be better.
Date published: 2018-07-16
Rated 3 out of 5 by from It’s a budget collar I feel bad giving this too harsh of a review because this collar is meant to be a budget item, but even still it fell short of expectations. Its diameter is just barely bigger than an Oly bar, so it’s a pain to get on and off, and often sticks/catches. The lever is also too tight and feels brittle at the same time. Go for the more expensive OSO collars, you'll be glad you did.
Date published: 2018-06-15
Rated 3 out of 5 by from Not quite sure yet I have used these a handful of times and I am still not sure if I like them. Just not quick enough when you have to change the weight several times in a WOD. They do keep the weight stable and do lock in well so I have them 3 stars.
Date published: 2018-06-09
Rated 4 out of 5 by from They get the job done Nice and compact they look like their 1/2 the size of plastic ones, snug fit, haven't had issues. Seemed small upon arrival, by no issues on standard bars. Haven't popped or slid, even on a older bar's with chrome-ing coming off, haven't had issues with 4 bumper plates on a stiff bar for deadlifts.
Date published: 2018-05-21
Rated 5 out of 5 by from Light, strong I use these on a Texas power bar, and they slide right onto the sleeve. Pressing, benching, squatting, they stay put. They sometimes slide a small amount by the end of a heavy set of deadlifts, but that’s easy to reset between sets. I’d expect most collars to do that.
Date published: 2018-04-27
Rated 2 out of 5 by from Nope Not good compared to the original. These operate on actually clamping down on the sleeve of your barbell, not by tension like the original. It dented my barbell sleeves a little bit. Now I cannot even squat without my plates wanting to slide off (I used to be able to at least squat with no collars on what so ever). Save your money, and just get the regular OSO collars.
Date published: 2018-04-13
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