The Accu-Tac WB-4 Picatinny QD Bipod Flat Dark Earth is a wide-body precision bipod in a Flat Dark Earth finish that sets your rifle low between the legs for outstanding stability under recoil.
How It Compares
Prefer an Arca-Swiss mount? See the WB-4 Arca-Spec QD Bipod Flat Dark Earth. This bipod is also available in Black, and if you need more height the longer-legged WB-5 Picatinny QD Bipod (Black) reaches up to 10″. Browse the full Accu-Tac range and all bipods & monopods.
Ideal For
- Precision rifle and PRS-style shooting from varied terrain
- Shooters who want a low, wide, recoil-stable front support
- Rifles with a MIL-STD-1913 Picatinny forend rail
Key Features
- Wide-body “WB” chassis positions the rifle low between the legs for maximum stability and reduced recoil-induced movement
- Tool-free Picatinny quick-detach clamp for MIL-STD-1913 rails — installs and removes in seconds while retaining zero
- Positive cant-lock lever with up to ±35° of cant for uneven terrain
- Four leg angles: 0°, 45° and 90°, or folded flat for compact stowage
- Five spring-loaded height notches covering 4.5″ (114 mm) to 7.5″ (190 mm)
- 6061-T6 billet aluminium body with hardened-steel hardware
- Mil-spec Type III hard-anodized finish in Flat Dark Earth for corrosion and abrasion resistance
- CNC-machined and assembled in the USA
Technical Specifications
| SKU / MPN / UPC |
TWBB-0400 / TWBB-0400 / 858520006602 |
| Brand |
Accu-Tac (USA) |
| Mount Interface |
Quick-detach clamp for MIL-STD-1913 Picatinny rail |
| Materials |
6061-T6 aluminium; hardened-steel hardware |
| Cant Adjustment |
Up to ±35° with positive cant-lock lever |
| Leg Angles |
0°, 45°, 90°, folded |
| Height (45° legs) |
4.5″ / 114 mm |
| Height (90° legs) |
6.0″–7.5″ / 152–190 mm |
| Stance Width (45° legs) |
10.0″ / 254 mm |
| Stance Width (90° legs) |
14.0″ / 356 mm |
| Closed Width |
3.25″ / 82 mm |
| Closed Length |
7.5″ / 190 mm |
| Weight |
22.08 oz / 626 g |
| Finish |
Type III hard-anodize (Flat Dark Earth) |
| Warranty |
Accu-Tac Limited Warranty |
What's Included
- Accu-Tac WB-4 Picatinny QD Bipod (Flat Dark Earth)
- Positive-lock cant lever
- User manual
UK Delivery & Support
UK Delivery is fast and fully tracked, dispatched from our UK warehouse — no import duties or hidden fees. Backed by UK-based aftersales support.
Frequently Asked Questions
Will it fit my rifle?
It clamps tool-free to any MIL-STD-1913 Picatinny rail section on your forend.
Does the quick-detach clamp hold zero?
Yes — the tool-free QD clamp is designed to install and remove in seconds while reliably retaining zero.
What is the difference between the WB-4 and WB-5?
The WB-5 uses longer legs for higher shooting positions, while the WB-4 is lower and more compact for prone work.
