The Accu-Tac M-LOK Spec-4 Bipod Black is a US-made billet aluminium rifle bipod, part number MLSB-0004, with a direct M-LOK interface that bolts straight to an M-LOK handguard. It is built on the Accu-Tac BR-4 G2 platform and weighs 18.5 oz / 524 g, with height from 5.12" / 133 mm at 45° up to 8.12" / 203 mm at 90°.
How It Compares
Mounting straight into M-LOK slots removes the rail section and the clamp, which saves weight and keeps the bipod closer to the barrel. The Accu-Tac M-LOK Spec-5 bipod is the other size. If your handguard has a Picatinny rail instead, take the Accu-Tac BR-4 G2 Picatinny QD bipod, or the Arca-Spec QD version for an Arca chassis forend. Compare the complete Accu-Tac line-up and more precision rifle bipods.
Ideal For
- Prone deer stalking where the rifle has to sit low and steady in cover
- Target and gallery rifle shooting off a mat at club distances
- Practical and service rifle stages that need a fast, repeatable prone position
- Long-range and PRS-style shooting from a bipod-and-rear-bag setup
Key Features
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Mount: Direct M-LOK
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Mounting: Direct M-LOK attachment, mounting hardware included — no rail section required
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Platform: Built on the Accu-Tac BR-4 G2 platform
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Height: 5.12" / 133 mm at 45°; 6.62" / 165 mm to 8.12" / 203 mm at 90°
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Stance: 8" / 203 mm to 12.25" / 311 mm
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Construction: 100% billet 6061-T6 aluminium with high-strength steel hardware
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Finish: Type III (MIL-SPEC) hard anodise, flat black
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Origin: Made in USA — designed, engineered and manufactured by Accu-Tac
Technical Specifications
| Mount |
Direct M-LOK |
| Min Height (legs at 45°) |
5.12" / 133 mm |
| Min Height (legs at 90°) |
6.62" / 165 mm |
| Max Height (legs at 90°) |
8.12" / 203 mm |
| Min Stance (legs at 45°) |
8" / 203 mm |
| Max Stance (legs at 90°) |
12.25" / 311 mm |
| Closed Width |
3.25" / 82.5 mm |
| Closed Length |
7.5" / 190 mm |
| Weight |
18.5 oz / 524 g |
| Materials |
6061 T6 aluminium alloy / high-strength steel hardware |
| Finish |
Type III (MIL-SPEC) hard anodise, flat black |
| Brand |
Accu-Tac (USA) |
| SKU / MPN / UPC |
MLSB-0004 / MLSB-0004 / 858520006664 |
What's Included
- 1 × Accu-Tac M-LOK Spec-4 Bipod Black (MLSB-0004)
- Manufacturer's documentation
Warranty
Covered by the Accu-Tac Limited Warranty against defects in materials and workmanship.
UK Delivery & Support
Every order is dispatched tracked from our UK warehouse, so there are no import duties or customs surprises, and you are backed by UK-based aftersales support from our team.
Frequently Asked Questions
What does the Accu-Tac M-LOK Spec-4 Bipod Black mount to?
It bolts directly into an M-LOK slot on the handguard using the supplied hardware, so no separate rail section or clamp is needed.
What height does the Accu-Tac M-LOK Spec-4 Bipod Black give?
The minimum height with the legs at 45° is 5.12" / 133 mm, and with the legs at 90° it adjusts from 6.62" / 165 mm to 8.12" / 203 mm.
Does the Accu-Tac M-LOK Spec-4 Bipod Black need a rail section?
No. It bolts directly into the M-LOK slots on the handguard using the supplied hardware, so no Picatinny rail section or separate clamp is needed.
How much does the Accu-Tac M-LOK Spec-4 Bipod Black weigh?
The Accu-Tac M-LOK Spec-4 Bipod Black weighs 18.5 oz / 524 g.