NEED YOUR GEAR BEFORE CHRISTMAS? E-Gift Cards and Expedited Shipping are available. Click for Details
Daily Shipping Deals

Free Shipping on Select Items See Details

Buy 3 or More 3 Ships Free Items and They Ship For Free See Details

OSO CM-1 Metal Collars

* Required Options

3 Ships Free Item

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

Australia 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 sized to fit all standard 50mm Olympic barbell sleeves. They’re currently available to order in three colors: Red, Gray, and Blue. A budget-friendly polymer version of this design is also available separately.

Fast Rogue Shipping

You can then follow the progress of your package online via the Rogue Shipping Tracker.

Additional Specifications:

  • Sold in Pairs
  • Made in the USA
  • Designed to be used on 50mm Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminum construction
  • Weight: approx. 1 LB 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
  • Color Options: Red, Gray or Blue

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

See Also: The 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
Product Weight approx. 1 LB per pair
Material Type 6061 Billet Aircraft Grade Aluminum
Other Product Specs 2 Year Warranty*
OSO CM-1 Metal Collars is rated 4.9 out of 5 by 20.
Rated 4 out of 5 by from Great collar, but not as good as the OG I bought a pair of these OSO Titan collar, when someone else decided they wanted my old OSO collars more than I did. They are very ease to get on and off the bar, and I like how many colors and combos you can create. However, I find that these collars still slip from their seat once clamped. I feel that the older style would hold a lot better. I don't think I had to reclamp them a single time. With these I have to reclamp once or twice during a WOD with some type of Oly movement. I am just an average CF athlete and I don't throw around huge amounts of weight. Overall its a [email protected] good collar!
Date published: 2018-11-24
Rated 5 out of 5 by from Never without them now I bought these at the 2017 Games after seeing them take a beating on the competition floor. My lifting partner and I put them through 16 rounds of 17.5 in 15 minutes and they didn’t budge. Everyone else was readjusting their bar and plates, ours held fast. I bought them on the final day of the games and received free engraving from a great bunch of people at the OSO booth, highly recommend! Get the metal ones, they’ll last you forever.
Date published: 2017-09-09
Rated 5 out of 5 by from dont second guess yourself iv been hesitant for about a year on spending money on good collars. These are the best.............HANDS DOWN. I would buy again in a second!!!
Date published: 2017-12-06
Rated 5 out of 5 by from The bar has been raised Bought a pair at the games and quite simply these are the best collars money can buy. An absolute steal and made in the USA. Thanks OSO, for proving again that the best products can still say "Made in the USA".
Date published: 2017-08-30
Rated 5 out of 5 by from Best design out there These collars are the best I've used. The reason for that is that the plugs keep them really tight AND can be replaced when they wear out... and they will over time. Not sure if they can still be replaced since oso sold out to rogue. If they can then they are great... if not then they are just another expensive collar.
Date published: 2018-02-06
Rated 5 out of 5 by from Awesome These collars are great. They fit very snugly on the bar even after repeated overhead drops. Just be a bit cautious when removing the collars as they have a little snap to them when you unlock the arm. Overall, these are a solid pair of collars that will last a long time.
Date published: 2018-11-11
Rated 5 out of 5 by from Working Nicely Took a workout or 2 for the rubber inserts to really settle fully into place, but once they did - wow. This is one slick, secure collar. Locks onto the sleeves and doesn't budge. Use caution when unclamping the levers on the collar, they unlock with some force early on.
Date published: 2018-04-12
Rated 5 out of 5 by from Zero Slip Own several of the other line of OSO collars and these are by far the best. Not only do they not slip, they are also the easiest to put on and remove. Recently did 55 C&J at 185#. Every rep dropped from overhead. Nothing moved.
Date published: 2018-07-17
  • y_2018, m_12, d_13, h_18
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_20
  • loc_en_US, sid_AU-OB0018, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_rogueaustralia