SOG Pentagon OTF Blackout Knife 3.79″ Blade Black
$244.31
SOG Pentagon OTF Blackout Knife
American-made automatic knife with one-handed fast opening switchblade functionality. The CRYO S35VN blade and hard-anodized aluminum handle enhance durability. Features a Dynamic Lock-up System for reliable blade lock-up strength.
10 in stock
The American made Pentagon OTF automatic knife is designed to meet the exacting demands of users who require a dependable one-handed fast opening switchblade knife. SOG's Dynamic Lock-up System redefines open reliability and blade lock-up strength in OTF knives while the CRYO S35VN blade and hard-anodized aluminum handle reinforce the durability of the switchblade. Pentagon OTF delivers reliable OTF technology for professional users who rely on high-end steel and technology.
Features:
- OVERALL LENGTH: 9.08"
- CLOSED LENGTH: 4.06"
- BLADE LENGTH: 3.79"
- BLADE THICKNESS: 0.11"
- WEIGHT: 6.7 oz
- BLADE STEEL TYPE: CRYO CPM S35VN
- BLADE FINISH: Black Titanium Nitride
- BLADE SHAPE: Spear Point
- EDGE TYPE: Straight
- HANDLE MATERIAL: Aluminum
- HANDLE COLOR: Blackout
- OPENING MECHANISM: OTF Switch
- LOCKING MECHANISM: Dynamic Locking System
- COUNTRY OF ORIGIN: USA
| Weight | 0.645 lbs |
|---|---|
| Dimensions | 11.000 × 3.500 × 1.250 in |
| Manufacturer | Sog Specialty Knives Inc. |
| Finish | Black Titanium Nitride |
| Weight | 6.7 oz |
| Material | Aluminum |
| Dimensions | 9.08″ overall length, 4.06″ closed length, 3.79″ blade length |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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