What Is Nitro Rocket? The Patented Nitrate Ingredient in Outlaw Supplements Pre-Workouts

If you've looked at the label on Gunslinger or Double Barrel, you've seen "Nitro Rocket" listed as one of the key ingredients. It's not a made-up marketing name — it's a patented, standardized extract from one of the most nitrate-rich plants on earth.

Here's exactly what it is, how it works, and why it's in our formula.

What Is Nitro Rocket?

Nitro Rocket is the trademarked name for a concentrated, standardized extract of arugula — the leafy green plant also known as rocket. Arugula is one of the highest natural sources of dietary nitrates among all vegetables, and Nitro Rocket takes that to the next level by concentrating those nitrates into a precise, performance-ready dose.

Dietary nitrates have been studied extensively for their ability to enhance blood flow, oxygen delivery, and muscular endurance. Nitro Rocket puts a clinical-grade version of that compound into every scoop of our pre-workouts.

How Does Nitro Rocket Work?

The Nitrate → Nitrite → Nitric Oxide Pathway

When you consume dietary nitrates from Nitro Rocket, your body converts them through a two-step process:

Step 1: Nitrate → Nitrite — bacteria in your mouth convert nitrates to nitrites
Step 2: Nitrite → Nitric Oxide (NO) — nitrites are then converted to nitric oxide in the bloodstream

The result is a surge in nitric oxide — the molecule responsible for vasodilation, or the widening of blood vessels. Wider blood vessels mean more blood, oxygen, and nutrients delivered to working muscles during your training session.

What That Means in the Gym

More nitric oxide = better pumps, better endurance, and faster recovery between sets. Specifically:

Increased vasodilation — your muscles fill with blood and stay full throughout your workout
Improved oxygen efficiency — your muscles use oxygen more effectively, meaning you can train harder for longer
Enhanced muscular endurance — studies on dietary nitrates consistently show reduced fatigue and improved time to exhaustion
Better nutrient delivery — greater blood flow means more amino acids and glucose reaching your muscles when they need it most

Why Nitro Rocket Instead of Plain Beet Root or L-Arginine?

Most pump supplements on the market use either beet root powder or L-arginine to drive nitric oxide production. Both have limitations.

Beet root powder is inconsistent — the nitrate content varies wildly between brands and batches depending on how it was grown, processed, and stored. You never really know what you're getting.

L-arginine has poor bioavailability when taken orally. A large percentage of it gets broken down before it ever reaches your bloodstream, which is why most arginine-based pre-workouts produce minimal pump compared to their label claims.

Nitro Rocket solves both problems. It's standardized for a precise nitrate content, meaning every scoop delivers the same dose every time. And because it works through the nitrate pathway — not the arginine pathway — it bypasses the bioavailability issue entirely.

The Nitro Rocket + Agmass Combination

What makes Gunslinger and Double Barrel unique isn't just that they contain Nitro Rocket — it's that Nitro Rocket is stacked with Agmass (patented agmatine sulfate) in the same formula.

These two ingredients hit nitric oxide production through completely different pathways:

Nitro Rocket — drives NO production via the nitrate → nitrite → NO pathway
Agmass — drives NO production by inhibiting arginase (the enzyme that breaks down arginine) and modulating nitric oxide synthase enzymes

The result: two separate mechanisms working simultaneously to maximize nitric oxide levels. You get bigger, longer-lasting pumps than either ingredient could produce alone. This is what separates a thoughtfully engineered formula from a label full of token ingredients.

What Does It Feel Like?

Training with Nitro Rocket in your system produces a noticeably different kind of pump — fuller, longer-lasting, and more vascular than stimulant-driven pumps.

Full, round muscle bellies that stay pumped from your first set to your last
Visible vascularity — the kind that shows up in the mirror and stays there
Sustained endurance — less burning, less fatigue, more reps
No stimulant dependency — because it works through blood flow, not adrenaline

This is especially noticeable with Dead Eye (our stim-free pre-workout) and Double Barrel (standalone nitric oxide formula), where the pump compounds are the star of the show without stimulants masking the effect.

How to Use

Nitro Rocket is dosed at effective levels in both Gunslinger and Double Barrel. Follow the serving directions on your product label.

Timing: Take 20–30 minutes before training. Dietary nitrates work best when they have time to convert through the nitrate pathway before you start lifting.

Stack tip: For maximum pump, stack Gunslinger or Dead Eye with Double Barrel. You'll be hitting the nitric oxide pathway with Nitro Rocket, Agmass, and the combined synergy of both products simultaneously.

The Bottom Line

Nitro Rocket isn't a filler ingredient. It's a patented, standardized arugula extract that drives nitric oxide production through a well-researched, clinically validated pathway — and it does it consistently, batch after batch.

We use it because it delivers real results, and because our customers deserve to know exactly what's in their pre-workout and why it works.

All Outlaw Supplements products are transparently dosed with patented, third-party verified ingredients. Nitro Rocket is a registered trademark of its respective owner.