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OSO CM-1 Metal Collars

OSO CM-1 Metal Collars

Special Price $59.50

Regular Price: $59.50

Collars come standard with black plug.
OSO Rubber Collar Plugs - 4 Pack

Special Price $5.25

Regular Price: $5.25

Plugs only. Collars NOT included.

3 Ships Free Item

Buy 3 or More Items Marked "3 Ships Free" & They All Ship For Free

Cont. US 48 Only

OSO CM-1 Metal Collars

The OSO CM-1 Metal Collar introduces some innovative new engineering elements inspired by customer feedback and advances in precision technology. This includes rubberized interior plugs for a superior hold on the bar, an updated handle, and a fresh new design made from OSO’s top-grade 6061 Billet Aluminum. The CM-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.

OSO CM-1 Metal Collars are sold in pairs and come standard with black plugs. Sized to fit all standard 50MM Olympic barbell sleeves. A budget-friendly polymer version polymer version of this design is also available separately.

Addition rubber plugs can be purchased in a variety of colors. See the checkout area for more details.

Fast Rogue Shipping

Orders placed before 3pm ship from Rogue HQ the same day. You can then follow the progress of your package online via the Rogue Shipping Tracker.

Additional Specifications:

  • Sold in Pairs
  • Made in the USA
  • Manufactured in Columbus, Ohio
  • Designed to be used on 50MM Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminum construction
  • Weight: approx. 1LB per pair
  • NEW Rubberized interior plugs for a tight hold on the bar (see instructions for use below)
  • NEW Handle design
  • Cam Locking clamp mechanism for lock-down stability
  • Patented

Instructions for Inserting Plugs

  • Step 1 – Align plug so that it sits evenly atop the slot that it will be pressed into
  • Step 2 – Gently push with both thumbs, alternating from the top to the bottom, and repeat. This will slowly work the plug into position in a small amount at a time. (If you try to force the plug in, it will tend to stick, and will then require more effort than necessary. It may help to get the sides of the plugs wet so that they slip in more easily)
  • Step 3 – Once the plugs are in place, it may take a couple of clamping cycles on the bar to get them completely seated. This entire process should only take a few minutes for each collar

The standard rubber plugs included with these OSO collars are gray, but customers can opt to add a 4-pack of extra rubber plugs to their order in any one of a dozen additional colors. Check them out here.

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 Various Colors
Product Weight approx. 1LB per pair
Material Type 6061 Billet Aircraft Grade Aluminum
Other Product Specs 2 Year Warranty*
OSO CM-1 Metal Collars is rated 4.8 out of 5 by 38.
Rated 5 out of 5 by from Solid, locks the plates well also axial! When locking it has a very tight grip on the bar due to the rubber. The rubber gets squeezed to the sides of the collar, which fixes any axial clearance between the plate and the collar. This is a very good buy, if you want to have the plates fixed. I am using steel plates!
Date published: 2021-05-16
Rated 5 out of 5 by from Black collars, orange plugs Years ago, I bought cheap lever action collars because I was tired of the spring clips, at many gyms, extending past the edge of small plates when a lightly loaded bar was on the floor. That pair cost about $15; they have survived several gym memberships, and, I still use them. But, I love these OSO collars. They are 1/2" narrower and they clamp down hard which is the dual action needed when loading a bar to the max. I've had mine for over 2 years. So far, no issues with the lever; but, it does feel like the levers are under-engineered for these collars. I bought the orange inserts to make the collars easy to spot on a gym floor with a lot of black horse stall mat. Plus, the black collar with orange insert is an homage to Halloween, the wife and my favorite "meet the neighbors" holiday. To avoid being tricked by these collars, use them mindfully. They both clamp down hard and open with force. Inserting the plugs is just the opposite - us a gentle back and forth pressure and they pop in easily.
Date published: 2021-01-28
Rated 4 out of 5 by from Easy to use! Love them! Much easier to than squeeze clamps. I do tend to hit my finger tips when I release them since the spring action is pretty quick.
Date published: 2020-12-25
Rated 5 out of 5 by from Love it The clamps work great I would recommend to others to buy
Date published: 2020-10-21
Rated 5 out of 5 by from Good product Works as expected. Maintains strong lock. Very good size physically. Recommend over other products.
Date published: 2020-10-10
Rated 4 out of 5 by from Great collars. Plastic handles... Great collars love how the rubber won’t mar my plates as much as the other rogue aluminum ones (though those look nicer). Also the plastic handle is puzzling. Hope it holds up
Date published: 2020-09-05
Rated 5 out of 5 by from Superb product I got these and have not been disappointed. They stay in place whether benching or doing dead lifts. Will probably be getting an additional set to add to the collection.
Date published: 2020-08-03
Rated 5 out of 5 by from Great Collars I bought this about a month ago and I am very happy I got two pairs! Very nice collar works well and looks great!
Date published: 2020-06-29
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