Description
Bestechman SPRITE BMK21F – M390 EDC Folder, Black & Green G10
The Bestechman SPRITE BMK21F is an ultra-compact EDC folding knife built around a 2.36" Böhler M390 blade with a black stonewash finish and lightweight black and green G10 handle scales. At just 45g and 5.59" overall, the SPRITE BMK21F delivers world-class M390 steel performance in one of the lightest compact folders available — making it ideal for minimalist pocket carry, travel, and everyday use. The deep carry, left/right reversible clip keeps the BMK21F completely concealed in the pocket.
Blade: M390 Black Stonewash, 61 HRC
The 2.36" M390 blade on the Bestechman SPRITE BMK21F wears a black stonewash finish that provides excellent scratch resistance and a stealthy, non-reflective appearance. Böhler M390 is a third-generation powder metallurgy stainless steel — widely regarded as one of the finest stainless blade steels available, delivering edge retention that far outperforms standard tool steels alongside outstanding corrosion resistance. At 61 HRC, the BMK21F blade strikes a strong balance between hardness and toughness. The 0.09" (2.3mm) blade thickness keeps the SPRITE slim and optimized for slicing tasks.
Handle: Black & Green G10
The SPRITE BMK21F features black and green G10 handle scales — a two-tone color scheme that gives this compact knife a clean, distinctive look. G10 is a glass-fiber laminate known for its excellent grip, moisture resistance, and low weight. The G10 scales contribute to the BMK21F's featherweight 45g carry weight — lighter than the titanium-handled SPRITE variants — while still providing a solid, secure grip. The black and green combination offers a versatile aesthetic that works equally well for everyday urban carry and outdoor use.
Mechanism & Carry
The Bestechman SPRITE BMK21F deploys via thumb studs and locks with Bestechman's proprietary B-Lock — a compact, secure locking mechanism tailored for the SPRITE's slim frame. The deep carry pocket clip is reversible for left or right-handed carry, keeping the BMK21F fully hidden in the pocket. At 45g, this is an exceptionally lightweight EDC that carries all day without fatigue.
Bestechman is a sub-brand of Bestech Knives Ltd., focused on premium everyday carry knives. The SPRITE line represents Bestechman's most compact offerings, pairing top-tier M390 steel with a range of handle materials and color options.
Specifications – Bestechman SPRITE BMK21F
| SKU | BMK21F |
| Blade Steel | Böhler M390 |
| Blade Finish | Black Stonewash |
| Blade Hardness | 61 HRC |
| Blade Length | 2.36" (60 mm) |
| Blade Thickness | 0.09" (2.3 mm) |
| Overall Length | 5.59" (142 mm) |
| Handle Length | 3.23" (82 mm) |
| Weight | 45g (1.59 oz) |
| Handle Material | G10 |
| Handle Color | Black + Green |
| Lock Type | B-Lock |
| Deployment | Thumb Studs |
| Pocket Clip | Deep Carry, Left/Right |
| Brand | Bestechman (sub-brand of Bestech Knives) |
Frequently Asked Questions
What steel is in the Bestechman SPRITE BMK21F?
The Bestechman SPRITE BMK21F uses Böhler M390 — a third-generation powder metallurgy stainless steel hardened to 61 HRC. M390 is widely regarded as one of the finest stainless blade steels, delivering exceptional edge retention and corrosion resistance. Finding M390 in a $105 folding knife is exceptional value for the steel quality.
How light is the Bestechman SPRITE BMK21F?
The Bestechman SPRITE BMK21F weighs just 45g (1.59 oz) — making it one of the lightest M390 folding knives available. The G10 handle scales contribute to this ultralight weight, and combined with the deep carry clip, the BMK21F is virtually undetectable in the pocket during all-day carry.
What is B-Lock on the Bestechman SPRITE BMK21F?
B-Lock is Bestechman's proprietary locking mechanism designed specifically for the SPRITE platform. It provides secure, positive blade lockup when deployed and releases intuitively for one-handed operation, while keeping the overall profile of the SPRITE BMK21F slim and pocketable.
How does the Bestechman SPRITE BMK21F compare to the SPRITE BMK21H?
The Bestechman SPRITE BMK21F and SPRITE BMK21H share the same M390 blade geometry, B-Lock mechanism, and overall dimensions. The key differences: the BMK21F uses black and green G10 scales and weighs just 45g at $105, while the BMK21H features purple crystallized titanium scales with a stonewash+satin blade finish at 60g for $150. The BMK21F is the more accessible, ultralight option; the BMK21H is the premium titanium version with a more distinctive finish.
Is the Bestechman SPRITE BMK21F good for everyday carry?
Yes — at 45g with a 2.36" M390 blade and ambidextrous deep carry clip, the Bestechman SPRITE BMK21F is an ideal minimalist EDC. It handles everyday cutting tasks with ease while carrying lighter than almost any other M390 folder on the market. The black and green G10 scales provide reliable grip in any conditions.
Where can I buy the Bestechman SPRITE BMK21F?
Going Gear is an authorized Bestechman dealer. Purchasing the Bestechman SPRITE BMK21F through Going Gear ensures you receive a genuine product backed by Bestechman's lifetime warranty against defects in materials and workmanship.