Geissele
The Super Duty URG-I M4 Carbine brings you to the forefront of performance by mating the URG-I Upper (currently fielded by USASOC) with a Colt Carbine Lower. Field tested and proven, this 5.56 NATO chambered, 14.5” carbine is assembled by Potomac Armory in the USA. The Geissele SMR Mk16 brings you unparalleled M-LOK modularity and ergonomics. Potomac Armory includes the Geissele 2-stage match trigger.
Features matching set of Geissele milspec anodized black receivers - upper and lower
This rifle kit comes with some of Charlie's favorites: in addition to the awesome Mk16 rail, a Geissele milspec forged matched set upper and lower receiver, military grade Geissele 2-stage trigger; Geissele Maritime Bolt Catch, FN mid-length barrel and B5 SOPMOD. We love B5. Great products.
This is a no tax stamp 14.5" rifle, as the flash hider is pinned and welded.
The original carbine was a special release by Geissele in late 2020, but was a one-time build. Charlie's has arranged to have Potomac Armory build out the full rifle, complete with Geissele parts and a military grade mid-length gas barrel and 4-prong flash hider.
Some options that Charlie's recommends with this rifle:
UPPER |
Forged Mil-Spec Upper Receiver, 7075 hard coat anodized black with engraved T-marks and M4 feedramps. |
MUZZLE DEVICE |
Surefire SOCOM military grade 4-prong pinned and welded * |
BARREL |
FN 14.5" CMV 4150 chrome-lined Government profile mil spec phosphated barrel, 1:7 twist 5.56 NATO chambered |
GAS SYSTEM |
mid-length |
GAS BLOCK |
Mk12 gas block |
HAND GUARD |
Geissele SMR Mk16, NSN or Geissele stamped, DDC |
CHARGING HANDLE |
Geissele USASOC URG-I Airborne DDC (military version) |
BOLT CARRIER GROUP |
Microbest mil-spec phosphated and chrome lined BCG, Carpeter-158 steel bolt |
LOWER |
Geissele Super Duty black receiver with Geissele ALG lower parts |
TRIGGER |
Geissele GS2 two-stage trigger |
BUFFER SYSTEM |
Super-42 H1 spring and buffer with Schmid military grade 6-position forged milspec buffer tube with DFL |
SAFETY |
Geissele ALG milspec safety |
BOLT CATCH |
Maritime Bolt Catch |
GRIP |
Milspec Black A2 grip, black |
STOCK |
B5 Systems SOPMOD, black |
MAGAZINE |
Amend2 30-round magazine, where permitted |
CALIBER |
5.56mm |
NFA STATUS |
Non-NFA |
Video courtesy of Garand Thumb; Pictures from Geissele, Potomac Armory, Charlies Custom Clones
* Previous versions have had different flash hiders, this is an update for 2024
Manufacturer's model was 08-350 before being discontinued.
Note: some pictures reflect the Surefire Warcomp flash hider. That is an optional updgrade. Consult Charlie's Sales Team if interested. Residents in states that ban flash hiders can request a Surefire brake at no additional charge, but expect additional armorer time.
Buying and shipping through Charlie’s is easy, but there is some information you need to know. This item must ship to FFL holder. No civilian exceptions.
1) Check your state laws to make sure the federally regulated item you want to purchase is legal in your state.
2) Find your FFL… Have your dealer send us a copy of their FFL to Charlie’s (Make them earn their fee!!!)
3) Be patient! You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.
That’s it! We try to make this process as simple as possible for our customers. Please click the “Buying a Firearm” tab at the top of this page for more information.
California residents please, click here. The process may be different due to state specific laws.
NOTE: The free shipping option does not apply to full rifles, including kits
THIS IS A SERIALIZED FIREARM. It must ship to a Federal Firearms License holder. No civilian exceptions.
Buying and shipping through Charlie’s is easy, but there is some information you need to know. Only a federally licensed firearms dealer may receive a firearm or federally regulated serialized item (like a receiver or suppressor). We cannot ship these items directly to you. Please follow these steps to process your transaction:
1) Check your state laws to make sure the federally regulated item you want to purchase is legal in your state. Your FFL dealer should be able to give you all of the necessary information regarding your state specific laws. But, if we ship to your FFL, and there is a legal issue, we cannot accept a return. So please make sure that you know and follow your local and state laws.
2) A quick google search will show you what Federal Firearms Licensed (FFL) dealers are in your area. When you are ready to purchase, contact the FFL dealer you would like to use and get their shipping address. During the check-out, put YOUR address in the “billing” section and the FFL DEALER’S address in the “shipping” section. If you don’t know your FFLs address, that’s okay. You can send the information later.
3) After check out, make sure to contact your FFL dealer to ensure they will receive your shipment for you (most do this for a small fee, but you should always double check).
4) Have your dealer send us a copy of their FFL to FFL@CharliesCustomClones.com. Charlie’s does not reach to your FFL (MAKE THEM EARN THEIR FEE!!!)
5) Be patient! In order to ensure we remain compliant with all federal laws, our compliance department is kept separate from our sales and operations team. Please allow a few days for our compliance officer to verify all of your dealer’s documents and ensure all federal laws are being observed. You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.
That’s it! We try to make this process as simple as possible for our customers, but if you are unfamiliar the process or have any other questions, please visit our How to Buy a Firearm page for more details.
California and New York residents please, click here. The process may be different due to state specific laws.
NOTE: The free shipping option does not apply to full rifles, unless purchased with a riflescope. If you choose free shipping at check-out, we will bill you for shipping later.