Microtech MSI Polymer

The Microtech MSI Polymer is a premium USA-made manual folding knife featuring a rugged sheepsfoot blade made of M390MK steel, RAM-LOK ambidextrous bar lock mechanism, polymer handle, and equipped for heavy-duty everyday carry.

Last updated21 July 2026

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Weight142 g (5.01 oz)

PriceUS$212

Blade steelM390MK

Lock typeRAM-LOK Bar Lock

Technical Specs

Specifications

CategoryFolding Knife

Blade length98.5 mm (3.88 in)

Overall length227 mm (8.94 in)

Closed lengthUnknown

Blade thickness4.1 mm (0.16 in)

Handle materialPolymer

FinishApocalyptic or Stonewash depending on model

Opening methodUnknown

Clip typeReversible Pocket Clip

Carry Profile

Best for

▣Everyday Carry▣Heavy-duty Use▣Utility▣Outdoor▣Emergency Personnel

Field Signals

Common praise

✓

Robust and reliable RAM-LOK locking mechanism

✓

Excellent edge retention and corrosion resistance of M390MK steel

✓

Ambidextrous one-handed operation

✓

Good grip and handle textures

✓

Premium USA manufacturing quality

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