Oso CP-1 Polymer Collars 2.0

Oso CP-1 Polymer Collars 2.0

This is the Reinforced Polymer version of OSO’s CM-1 Metal Barbell Collar, also available separately in aircraft grade aluminum. The innovative new design includes rubberized interior plugs for a superior hold on the bar, along with an updated handle and a fresh new exterior look. The CP-1’s cam locking clamp mechanism secures the collar in place for consistent stability and peace-of-mind through even the most intense weightlifting regimen.

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Oso CP-1 Polymer Collars 2.0 Reviews

Based on 2 reviews from Gym Radar users, the Rogue Fitness Oso CP-1 Polymer Collars 2.0 have an average rating of 4.34 out of 5. They're currently the #56 most-owned Collars on Gym Radar, with 4 home gyms reporting ownership.

2 Reviews

4.34 / 5
Performance
4.00 / 5
Build Quality
4.50 / 5
Value
4.50 / 5

User Reviews

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Big Monty
Monty's Training Hall
55 reviews
663 points
(5.00)
3/15/2026
These are my daily driver collars and I love them. Plates go nowhere, and the ability to replace the rubber inserts will allow these collars to be used for much longer than normal collars.
Performance
Value
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Big Katie M
No Parking Zone Strongman
60 reviews
1003 points
(3.67)
2/20/2026
These were the first collars I got for the home gym. They worked on all the bars we had. Sometimes they were difficult to close and every so often they wouldn’t quite lock in to place and pop open if I dropped the bar. I got extra rubber inserts to match the colors of my rack.
Performance
Value
Build Quality

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