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Galactic Marine
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Model GM6838, Photo by Greg Gatzka


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Description: Galactic Marine
Prefix: GM
Detachment: Blizzard Force
Context: Episode III: Revenge of the Sith

The Galactic Marines, originally known as the 21st Nova Corps of the 4th Sector Army, is an elite unit created as the Grand Army of the Republic diversified during the Clone Wars. Galactic Marines wear special body armor with maroon coloration. They are most often armed with DC-15A blaster rifles. The Marines are distinguished by their unique visor gear: synthmesh designed to keep out various hazards such as snow, sand, airborne fungus, and ash.


The 501st approval requirements are listed in black.

In the page below, items listed in blue are recommended features that will improve the quality of the costume. Items listed in red are intended to further enhance the finished costume.

For 501st membership only the requirements in black need to be met.

This Visual Guide has been reviewed by the detachment staff and the LMO team and is certified for use as a minimum approval guideline for GMLs. GMLs are free to approve this costume type.
  • Any uncertainties or questionable aspects of the submitted costume should be brought to the appropriate DL/GML peer review section of the legion forum.
Required Costume Components

The following costume components are present and appear as described below.

GM helmet.jpg Helmet
For 501st approval:
  • Galactic Marine style Helmet.
  • Armor is painted maroon.
  • Black or Green eye lens.
    • Welding Shield above grade 5.
    • Lens may be flat or bubble shaped.
  • Helmet has a rectangular vent with grating mesh.
  • A white Cowl wraps around the entire helmet.
  • Armor is weathered with shades of grey.
For level two certification (if applicable):
  • A gray lining is present around the eyes.
  • Brow and edge of the helmet have a thin bead detail trim.


Clone trooper neck seal.jpg Neck Seal
For 501st approval:
  • Neck seal is black in color with vertical ribbing or being smooth in appearance.
  • No logos or labels are visible.
    • If the seal is not incorporated as part of the undersuit, a balaclava or other similar covering is acceptable.


TK anh stunt undersuit.jpeg Under Suit
For 501st approval:
  • Black non-textured material, either one-piece or two-piece construction with no visible zippers or logos.
  • The only areas visible are the arms.
    • Using only a top undershirt is acceptable.


GM pants.jpg Overalls
For 501st approval:
  • Upper portion of the Overalls is back or dark grey.
  • The Overall trousers are a grey.
  • One rectangular cargo pocket with flap centered on the front of each thigh.
For level two certification (if applicable):
  • Inside the front of the pants is a cod armor insert.
GM Pauldron.jpg Pauldron
For 501st approval:
  • Shoulders are covered with a black tri-fold, double sided Pauldron.
  • Pauldron connects to the chest and back and is partially covered by the cowl draped from the helmet.


GM shoulders.jpg Shoulder Armor
For 501st approval:
  • Armor is painted maroon.
  • Left Shoulder is the same as the Barc (Kashyyk) trooper.
  • Right shoulder is TB shape with oval ridges.
  • Armor is weathered with shades of grey.


GM biceps.jpg Upper Arm Armor
For 501st approval:
  • Armor is painted maroon.
  • A dimple on the lower area of the back of the arm.
  • The outside of the bicep has a hard line edge at the front that turns in.
  • The inside of the upper arm is rounded.
  • Armor is seamless.
    • No visible traces of how the armor was assembled are shown.
  • A black strap with three small white ammo boxes wraps around the right arm.
  • Armor is weathered with shades of grey.
For level two certification (if applicable):
  • Inner part of ammo packs are painted off white/beige.
GM elbows.jpg Elbow Armor
For 501st approval:
  • Armor is painted matte or satin white.
  • Elbow straps have a raised detail line at the top and bottom of the strap.
  • Armor has two parallel dashed detail slots on each outside edge of elbow at the strap connection.
  • Elbows are mirror images of each other with a notched area on the outside of the elbow, above the detail marks.
  • Both elbows have ammo box details placed on the back.
  • Armor is weathered with shades of grey.


GM forearms.jpg Forearm Armor
For 501st approval:
  • Armor is painted maroon.
  • Both left and right forearms are mirror images of each other.
  • Forearm tops have a flattened triangular area with a ridge that comes to a point at the top of the forearm.
  • Armor is seamless.
    • No visible traces of how the armor was assembled are shown.
  • Armor is weathered with shades of grey.
For level two certification (if applicable):
  • Instead of a hard edge the top of the forearm has a bone ridge.
GM handplates.jpg Hand Plates
For 501st approval:
  • Armor is painted maroon.
  • Hand plates are mirror images of each other.
  • Hand plates have a top curving ridge that comes to a point over the index or middle finger, just past the main knuckle of the hand.
  • Armor is weathered with shades of grey.



Generic-black-gloves.jpg Gloves
For 501st approval:
  • Black over the wrist gloves made of leather, nylon, or other low pile fabrics.
  • Gloves cover any exposed skin.
  • Gloves do not show any labels or logos when the armor is worn.


GM Chest.jpg Chest Armor
For 501st approval:
  • Armor is painted maroon.
  • Chest specific shape to the GM and includes (3) greeblies on the front/ lower area of the chest armor.
  • Chest and back armor match together at the sides with no open gap.
    • A seam line is present.
  • An ammo belt is slung down right side of the chest.
    • Ammo belt includes (3) large white ammo boxes and (1) small black ammo box.
  • Armor is weathered with shades of grey.
For level two certification (if applicable):
  • Shoulder straps are slotted into the detail ridges of the top connection points.
  • Inner part of ammo packs are painted off white/ beige.
GM back.jpg Back Armor
For 501st approval:
  • Armor is painted maroon.
  • Back armor has a smooth surface with attachments for a backpack.
  • Back and Chest armor match together at the sides with no open gap.
    • A seam line is present.
  • Armor is weathered with shades of grey.
For level two certification (if applicable):
  • Shoulder straps are slotted into the detail ridges of the top connection points.
For level three certification (if applicable):
GM backpack.jpg Backpack
For 501st approval:
  • Backpack is painted matte or satin white.
  • Backpack consists of a main shell and two side shells, over a base and mounted to the back armor.
  • Backpack has a detonator type attachment underneath the main shell.
    • Detonator has smooth end caps and ridges.
    • There are no detonator keys.
  • Armor is weathered with shades of grey.


GM belt.jpg Belt
For 501st approval:
  • Belt is made from white canvas.
  • Belt has (2) large and (2) small canvas pouches, accompanied by (2) metal like buckle looking greeblies on the front and a Kama buckle in the front center of the belt.
  • Top of belt is mounted just below the Chest and Back armor with little or no gap visible.
  • There are (4) small canvas pouches on the rear of the belt.
  • Armor is weathered with shades of grey.


GM kama.jpg Kama
For 501st approval:
  • The Kama is made from a heavy material like denim or duck cloth.
  • The Kama is maroon and may be outlined with white color fabric trim.
  • The front edges of the kama start at the front belt boxes.
  • The Kama length extends to the bottom of the knee armor.
  • The rear of the Kama has a triangle split.
  • There is a strap on each side that comes from the inside of the kama front and clips to the command buckle.


GM knees.jpg Knee Armor
For 501st approval:
  • Armor is painted matte or satin white.
  • Knees cup the front of the leg.
  • Knees are strapped to the leg via a white strap that wraps around the leg and connects on both sides of the Knee.
For level two certification (if applicable):
  • Left leg knee strap is grey.
GM shins.jpg Lower Leg Armor
For 501st approval:
  • Armor is painted matte or satin white.
  • Armor includes (2) sets of white straps with a clip greeblies on each.
    • This is the same style lower leg armor as seen on the "Kashyyk Trooper".
For level two certification (if applicable):
  • Armor is seamless.
    • No visible traces of how the armor was assembled are shown.
GM boots.jpg Boots
For 501st approval:
  • Boots are made of white leather or leather-like material.
  • Sole pattern matches as closely as possible to the movie armor.
  • Most identifiable features include:
    • A high arch pattern on the inside of the sole.
    • Four profile "swoops" between the sole and leather.
  • Foot armor (Boot Caps) cover the top, front and sides of the boot and curve upward at the ankle.
    • Snaps placed on both sides foot, to secure the boot armor, is recommended.


Optional Accessories

Items below are optional costume accessories. These items are not required for approval, but if present must meet the guidelines below.


DC15 carbine.jpg DC-15S Blaster
For 501st approval:

Manufactured by BlasTech Industries the DC-15S is smaller in scale than the DC-15A blaster rifle. Although it has a shorter range than that of the "A" model, it is easier to handle with a higher rate of fire. It features a folding stock for braced firing.

  • Blaster rifle may be scratch built out of plastic, wood, metal or cast in resin.
  • Total length should be approximately 26 “or 66 cm.
  • Because of the scale, the Hasbro version is not allowed.
For level two certification (if applicable):
  • Folding stock (does not need to function).
  • A total of (12) radiator fins are present on the barrel.
  • Spare igniter is present on both sides of barrel.
  • Charge magazine is present on the right side.
For level three certification (if applicable):
  • Charge magazine is metal to gun metal grey in color.
  • Any bolts and screws are metal to gun metal grey in color.
  • Parts of the spare igniter are copper in color.
  • Blaster is weathered.


DC15 rifle.jpg DC-15A Blaster Rifle
For 501st approval:

Manufactured by BlasTech Industries, the DC-15A is a tibanna gas, cartridge powered weapon. Hyper-ionized blue plasma bolts are more than capable of penetrating armored units. Exceptionally effective against both droids and contemporary targets.

  • Blaster rifle is scratch built out of plastic, wood, metal or cast in resin.
  • Total length is approximately 55 inches (139.7 cm).
    • Because of the scale, the Hasbro version is not allowed.
For level two certification (if applicable):
  • A total of (10) radiator fins are present on the barrel.
  • A power setting adjuster is present.
  • The correct style of sniper scope is present.
  • Charge magazine lock is present on the left side.
  • Power setting adjuster, sniper scope and charge magazine lock is metal to gun metal gray in color.
For level three certification (if applicable):
  • Sniper scope is able to be removed from storage position (bottom of rifle) and attached to the top of the rifle.
  • Parts of the spare igniter are copper in color.
  • Front optical sight is able to flip to the up position.
  • Any bolts and screws are metal to gun metal grey in color.
  • Blaster is weathered.

This document and all of the images within were created by and are the property of the 501st Legion. All other uses are prohibited.

This CRL is available as a PDF at www.501st.com/databank/Costuming:GM_GalacticMarine

The 501st Legion is a worldwide Star Wars costuming organization comprised of and operated by Star Wars fans. While it is not sponsored by Lucasfilm Ltd., it is Lucasfilm's preferred Imperial costuming group. Star Wars, its characters, costumes, and all associated items are the intellectual property of Lucasfilm. ©2012 Lucasfilm Ltd. & TM. All rights reserved. Used under authorization.

Visit www.501st.com to learn more.
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The 501st Legion is a worldwide Star Wars costuming organization comprised of and operated by Star Wars fans. While it is not sponsored by Lucasfilm Ltd., it is Lucasfilm's preferred Imperial costuming group. Star Wars, its characters, costumes, and all associated items are the intellectual property of Lucasfilm. © & ™ Lucasfilm Ltd. All rights reserved. Used under authorization.