Lock-Jaw PRO 2 Barbell Collar - Quick Release Secure Clamp

In this review of the Lock-Jaw PRO 2 Barbell Collar the bottom line is simple: if you want a single, durable collar that locks plates firmly in place and swaps on and off quickly, this is built for that job. The reviewer found it best for lifters who change loads frequently and need worry-free security during heavy lifts. The most compelling reason to buy is the combination of an oversized quick-release latch and reinforced composite construction that delivers reliable, no-rattle holding power across sessions.

Key Features

• Lifetime warranty: The genuine Lock-Jaw PRO 2 includes a lifetime warranty that provides long-term peace of mind for regular gym use.
• Reinforced resin construction: Advanced composite reinforced resin gives the collar exceptional durability and resistance to cracking under repeated drops and impact.
• Unrivaled holding power: Designed to prevent rattling and sliding, the clamp keeps plates secure set after set and during dynamic lifts.
• Fast one-handed operation: The oversized quick-release latch lets users lock and unlock the collar with one hand for speedy weight changes.
• Fits common bar sizes: The collar is made to work with both 2' and 50mm bars so it fits Olympic-style and many commercial bars without adapters.
• Versatile for many lifts: Built for bumpers, deadlifts, bench, cleans, presses, HIIT and competition use where quick changes and strong retention matter.

Who It's For

The Lock-Jaw PRO 2 is aimed at serious gym-goers, home gym owners and small commercial facilities that need collars capable of heavy, repeated use and fast weight changes. It suits lifters who perform varied routines - from deadlifts to overhead presses and cleans - and want a secure, no-rattle solution.

Those who should look elsewhere include users who require a softer, lower-cost foam sleeve or those using unusually sized specialty bars outside the common 2' and 50mm standards. If metal lever collars are preferred for aesthetic reasons, this composite model may not match that look.

Pros & Cons

Pros

• Very durable composite construction resists impact and wear during heavy use.
• Excellent clamp quality and lockability that prevents plate movement and rattling.
• Quick, one-handed release and secure fit make weight changes fast and convenient.
• Lifetime warranty adds long-term value and confidence for frequent lifters.

Cons

• Composite look and feel differs from metal collars, which some users may prefer aesthetically.
• Designed for standard 2' and 50mm bars, so nonstandard shaft sizes will not fit.

Specifications

Our Verdict

The Lock-Jaw PRO 2 is a smart purchase for lifters who need a durable, reliable collar that makes quick changes easy and holds plates tightly under load. With robust composite construction, an oversized latch for one-handed use and a lifetime warranty, it delivers strong value for regular trainees and small gyms that favor functionality and longevity over metallic styling.

Frequently Asked Questions

Does this collar fit Olympic barbells?
Yes, it fits Olympic-style barbells and both 2' and 50mm bar shafts.

Is it easy to remove with one hand?
Yes, the oversized quick-release latch is designed for fast one-handed lock and unlock operation.

Will the plates rattle during drops?
The reinforced composite design is intended to provide unrivaled holding power to minimize rattling and sliding during lifts.