The .300 Blackout has gained an almost cult following. This chunky little round punches like a prizefighter and is ridiculously soft shooting. Where the love really comes with this round is when it slips into a suppressed rifle. The giggle factor is high when you start shooting 300BO through a good can. Recently, I discovered a new rifle to feed our need in this area—the MudGhost M4.
MudGhost M4 – A New Integrally Suppressed .300 Blackout Rifle
The MudGhost M4 in .300 Blackout is a compact, integrally suppressed hunting rifle built to dominate deep woods, thick brush, and tight corridors where silence is survival and follow-up shots are measured in heartbeats. Designed for hogs, whitetail, and small game, it delivers heavyweight performance in a lightweight, subsonic-capable package.
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A 10.5” barrel with a permanently attached 8” titanium suppressor delivers superior suppression, optimal dwell time, and perfect balance—no extra length, no bolt slap, no signature. From whisper-quiet 220-grain subs to hard-hitting supersonics, the 1:7 twist keeps groups tight and terminal effect consistent. The Jaguars Silencers Titanium-welded suppressor uses their intermittent flow technology. This is Jaguar Silencers’ proprietary baffle design engineered for peak performance and durability. Unlike traditional suppressor systems that rely on continuous gas expansion, intermittent flow technology uses a series of precisely spaced, variable-depth chambers to disrupt and redirect pressure spikes in staggered intervals.
ZeroLok ARCA Handguard
The 13.5” ZeroLok ARCA handguard locks in your shot with full-length ARCA rail, M-LOK slots, and QD sling cups—ready for any hunting setup. A crisp 2.5 lb trigger, short-throw safety, and vertical grip give you fast, instinctive control, while M-LOK heat shield pads guard your hands from suppressor bleed-off during rapid follow-ups.
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MudGhost M4
Driven by 51Fifty’s patented HydroBuffer system, the MudGhost is fully amphibious—ready to fire in rain, snow, mud, or straight out of total water submersion. Hunt how you want, where you want—without compromise.
This is not just a rifle—it’s a close-range predator’s weapon. Built for silence. Built for impact and built to make every shot count.
For more information, visit 51Fifty.
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MudGhost M4 Specs:
| CALIBER: | .300BLK |
| HANDGUARD LENGTH: | 13.5″ |
| BARREL LENGTH: | 10.5″ 1:7 |
| OVERALL BARREL LENGTH: | 16″ |
| BARREL PROFILE: | MEDIUM PROFILE |
| COLOR: | COYOTE BROWN |
| SUPPRESSOR: | JAGUAR SILENCERS TITANIUM WELDED |
| GAS: | PISTOL LENGTH FIXED |
| STOCK: | AMEND2 |
| GRIP: | AMEND2 |
| TRIGGER: | HIPERFIRE ELITE 2.5LBS |
| SAFETY: | 60-DEGREE |
| MOUNTING SYSTEM: | ARCA, M-LOK & PICATINNY |
| PRODUCT WEIGHT: | 6.24 LBS |
| MAGAZINE: | AMEND2 15- ROUND x4 |
| MSRP: | $3238.00 |
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