Otter Creek Arms Ocl-101 Zro Dta 1/2X28
The Otter Creek Arms OCL-101 ZRO DTA is a second-generation direct thread adapter built for shooters who demand minimal added length and weight in their suppressor setup. If you're running a suppressor on a 1/2x28 threaded barrel and want a rock-solid, lightweight mounting solution, this titanium adapter threads directly onto your muzzle without the bulk of traditional quick-detach systems. It's the kind of gear that disappears into your build—literally and figuratively—letting your suppressor do its job without compromise.
Built from 6Al-4V Grade 5 titanium with a PVD coating, the ZRO DTA sheds unnecessary weight while maintaining the strength you need for reliable mounting. This second-generation revision refined the original design based on real-world feedback: the wrench flats were extended 0.125 inches to give you actual purchase if you need to service the adapter, and the internal volume was opened up for improved flow characteristics. The result is an adapter that's 0.3 ounces lighter than the first generation while being easier to install and remove when needed.
Compatible with industry-standard 1.375x24 threaded suppressors, the OCL-101 is engineered to add as little length as possible to your system while keeping weight to a bare minimum. At just 0.9 ounces, it won't upset your barrel harmonics or noticeably shift your point of impact. Whether you're building a precision rifle, a lightweight hunting setup, or a dedicated range gun, direct thread mounting with the ZRO DTA gives you a no-nonsense connection between muzzle and suppressor.
Key Features
- Direct thread adapter for 1/2x28 muzzle threads
- 6Al-4V Grade 5 titanium construction with PVD coating for corrosion resistance
- Extended wrench flats for easier installation and removal
- Minimalist design adds minimal length to suppressor system
- Ultra-lightweight at 0.9 ounces
- Compatible with industry-standard 1.375x24 threaded suppressors
Specifications
| Muzzle Thread Pattern | 1/2x28 |
| Suppressor Thread Compatibility | Industry-standard 1.375x24 |
| Material | 6Al-4V Grade 5 titanium with PVD coating |
| Weight | 0.9 ounces |
| Generation | Second generation (ZRO DTA Gen 2) |
Frequently Asked Questions
What suppressors will work with the OCL-101 ZRO DTA?
This adapter is designed to work with industry-standard 1.375x24 threaded suppressors. Verify your suppressor's thread pattern before ordering to ensure compatibility.
Is the ZRO DTA easier to install and remove than the original generation?
Yes. The second-generation ZRO DTA features extended wrench flats that give you a solid grip point for installation and removal, addressing feedback from users who found the original version difficult to service in the field.
How much length does this adapter add to my suppressor system?
The ZRO DTA is engineered specifically to add minimal length to your overall setup, making it ideal for shooters who want the benefits of direct thread mounting without unnecessary system extension.
What makes titanium construction important in a suppressor adapter?
The 6Al-4V Grade 5 titanium construction provides strength and durability while keeping weight to a bare 0.9 ounces. The PVD coating adds corrosion resistance for reliability in field conditions without adding significant mass to your rifle.

