US Army 3 Day Assault Pack, Backpack

(4 customer reviews)



  • Small Zippered Compartment
  • Large Zippered Main Compartment
  • Adjustable Padded Shoulder Straps
  • Adjustable Waist Belt
  • Assault Pack 1850 Cubic Inches
  • MOLLE Webbing
  • Backpack Compression Straps
  • Water Resistant

Issue Type: USGI

Manufactured by:

  • Various Government Contractors

Country of Manufacture: USA

SKU: 321 Categories: ,
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This is the standard issue 3 Day Assault Pack used in the US Army and was previously used throughout the US Military. The pack has a large main zippered compartment and a smaller zippered front compartment. On the sides and bottom are cinch straps for securing bulky loads and external gear. Inside the main compartment is a removable stiffener that keeps the pack rigid, inside the same sleeve as the stiffener are straps for airborne operations. The front compartment has a small pocket for items and there are button snaps that interface with USGI bandoleers and claymore pouches for secure storage of both. On the sides and bottom is MOLLE webbing for pouches are accessories. At the top is a carry handle and two ports for antennas, hydration hoses and cables to be ran through. Shoulder straps are padded and adjustable and there is a buckled waist belt that can be tucked away when not in use. The shoulder straps have quick disconnects for when taking off the pack in an emergency. Overall these packs are sturdy and durable enough to carry up to 35 pounds of gear all day long, or 50 pounds if needed but with less comfort.

Around 1500 cubic inches, or 25 Liters, of carrying capacity in the main compartment, with an additional484 Cubic Inches, roughly 8 Liters in the front compartment.

Front Pocket: 11″H x 11″W x 4″D
Main Compartment: 18″H x 14W x 6″D


  • Small Zippered Compartment – This has a small storage compartment with a zipper closure.
  • Large Zippered Main Compartment – This has a large main storage compartment that is closed with a zipper.
  • Adjustable Padded Shoulder Straps – This has adjustable padded shoulder straps for extra comfort when carrying a load.
  • Adjustable Waist Belt – This has an adjustable waist belt to help secure and stabilize the load.
  • Assault Pack 1850 Cubic Inches – This assault pack as about 1850 cubic inches of storage space.
  • MOLLE Webbing – MOLLE webbing on exterior for attaching additional pouches and accessories.
  • Backpack Compression Straps – These straps help tighten down gear and keep your load stable and secure.
  • Water Resistant – It can be exposed to water for a short period of time without being damaged or saturated with water. Generally not recommended to submerge Water Resistant items unless item is made for that level of exposure.

Manufactured by:

  • Various Government Contractors – This item is manufactured for the US government by various contractors.

Country of Manufacture: USA – This product is manufactured in the #1 country, the USA.

Issue Type: USGI – These are genuine US government issued items made to military specification (mil-spec).

Additional information

Weight58 oz

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6 Color Desert Camo, ABU, AOR1, AOR2, Black & White, DCU, Faded UCP Gray, Flecktarn, Full Color, Green & Black, Jungle, MARPAT Desert, MARPAT Woodland, Multicam Arid, Multicam Black, Multicam Tropic, OCP Scorpion, Ranger Green, Snow Camo, Training Tourniquet, ACU, Black, Blue, Brown, Coyote Brown, Foliage Green, Gold, Gray, Green, Khaki, Multicam, Olive Drab, Orange, Red, Sage Green, Silver, Tan, White, Woodland, Yellow

4 reviews for US Army 3 Day Assault Pack, Backpack

  1. Alexander Cox (verified owner)

    I bought the lowest grade listed and was very pleased with what i received. It had some sand in it and dirt on it but cleaned up nice. No holes or tears, or anything that would prevent it from being totally serviceable.

  2. Tereasa Hilliard (verified owner)

    This is a rugged tough well built rucksack. I bought the defective grade rucksack and it feels like it’s fresh and new. There are great pockets inside to stow gear and be organized. Keeps the gear nice and dry in heavy rain. Very happy with the service, speed of arrival and this won’t be my only purchase. Worth every penny.

  3. Rick Kirby (verified owner)

    Just received my 3 day assault pack today and I am very pleased! I bought the defective grade and it is anything but defective. It is in great shape. No tears ,holes or malfunctions anywhere. Super fast shipping. Looking forward to buying more gear.

  4. Steve W (verified owner)

    I had to double check the description.
    Says used but looks like New!
    Great condition!

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US Military clothing in general runs in BDU sizing. If you are unsure about your proper size for clothing this chart will help you find your general size across all clothing, unless otherwise noted in the description.

XSR29-3267-7124 1/4
SS33-3663-6723 3/4
SR33-3667-7124 3/4
SL33-3671-7525 3/4
MS37-4063-6724 1/4
MR37-4067-7125 1/4
ML37-4071-7526 1/4
LS41-4463-6724 3/4
LR41-4467-7125 3/4
LL41-4471-7526 3/4
XLR45-4867-7126 1/4
XLL45-4871-7527 1/4
XXLR49-5267-7126 3/4
XXLL49-5271-7527 3/4
3XLR53-5667-7127 1/4
3XLL53-5671-7528 1/4
4XLR57-6067-7127 3/4

XSR23-2729 1/2 - 32 1/2
SS27-3126 1/2 - 29 1/2
SR27-3129 1/2 - 32 1/2
SL27-3132 1/2 - 35 1/2
MS31-3526 1/2 - 29 1/2
MR31-3529 1/2 - 32 1/2
ML31-3532 1/2 - 35 1/2
LS35-3926 1/2 - 29 1/2
LR35-3929 1/2 - 32 1/2
LL35-3932 1/2 - 35 1/2
XLR39-4329 1/2 - 32 1/2
XLL39-4332 1/2 - 35 1/2
XXLR43-4729 1/2 - 32 1/2
XXLL43-4732 1/2 - 35 1/2
3XLR47-5129 1/2 - 32 1/2
3XLL47-5132 1/2 - 35 1/2
4XLR51-5529 1/2 - 32 1/2

Customer Product Questions and Answers

    Does this pack come with a stiffener?
  1. 0 votes
    Q Does this pack come with a stiffener? answer now
    Asked by HOIMONTI BASU on October 7, 2021 12:24 am
    A Yes, this comes with the plastic stiffener

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