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The Otter Creek Labs Infinity 556K Suppressor represents a next-generation evolution in ultra-compact 5.56 rifle suppression, custom-engineered to balance elite signature reduction with cutting-edge pressure dynamics. Specifically optimized to satisfy the demanding requirements of hard-use duty platforms, SBRs, and tuning-sensitive semi-automatic rifles, this compact powerhouse redefines standard "K-can" expectations. The Infinity 556K achieves its outstanding balance by integrating an innovative, high-volume internal architecture built around a specialized low-backpressure flow baffle matrix. Rather than introducing harsh internal bottlenecks that force excessive toxic gases back through the receiver, this advanced engineering layout vents extreme pressures rapidly downrange. This protects your host weapon's cyclic timing, preserves vital component lifespan, and delivers an exceptionally deep, hearing-safe tone.
Every Infinity 556K chassis is precision CNC-machined from premium heat-treated 17-4 stainless steel and full-perimeter laser-welded into a single, indestructible monolithic core designed to easily endure relentless automatic firing schedules. Coated in a high-temperature resistant protective finish, it ensures complete field defense against gas erosion, surface abrasion, and extreme thermal cycling. Designed with an open structural architecture, the backend features the industry-preferred HUB (1.375x24) internal mounting footprint, enabling right-handed and southpaw operators to integrate their choice of quick-detach mechanisms, taper mounts, or standard direct thread adapters instantly. Out of the box, it delivers professional-grade structural longevity because every marksman deserves a dependable, low-drag suppression asset.
The Infinity 556k – by customer demand. It actually wasn’t something we planned on making. But the Infinity 7.62 was so awesome people begged us to do a 5.56 version so here it is. And yes, you can use it on 6mm.
The Infinity 556K is printed out of Haynes 282. A lot of people are talking about Haynes 282 – the metal scientists, the engineers, the astronauts. They’re saying “WOW Haynes 282 is so strong, so tough, the toughest, even tougher than Inconel”. They come to me with tears in their eyes and they say “Sir thank you for printing this out of Haynes 282 instead of Inconel. It takes heat like nothing we’ve ever seen before. It’s incredible and frankly other materials are scared, very scared, especially Inconel.” Little scared Johnny Inconel, the Inconel hoax they’re calling it. I’m not saying it, they’re saying it. Very high IQ people are telling me Haynes 282 is stronger at high temperatures than Inconel, it’s incredible.
One of the biggest selling points of the Infinity and what sets it apart from the competition is the adjustable end cap system. You can change the level of back pressure by swapping end caps and there are multiple levels of adjustment. Because of this it can perform optimally on any gun you have from a bolt action rifle all the way to a super over gassed AR or AK platform gun and anything in between. It ships in the box with the medium back pressure end cap but low back pressure and high back pressure end caps are available for purchase separately.
Based on the same premise as the Infinity a super durable, robust suppressor that you can pass down to your grand kids.
Very low back pressure but without sacrificing sound performance. Adjustable and configurable to meet the needs of whatever gun you’re putting it on. Low signature, low flash. Great performance on both long and short barrels. The total package.
Specs:
Caliber: 5.56mm
Length: 5.5″
Weight: 14.5oz
Diameter: 1.75″
Material: Haynes 282
Thread Pattern: HUB / Bravo / 1.375×24
Warranty: Lifetime
NOTE: This item is considered an NFA item. It is the customer’s responsibility to ensure that they are in compliance with NFA regulations as well as any applicable state laws regarding NFA items.
| SKU | OCL-INF556k |
|---|---|
| Manufacturer | Otter Creek Labs |
