If you bought a GSG-5 SD model rifle with a fake suppressor on it you should read this. The ATF now says the fake can is regulated and must be replaced. From what I can gather by reading online the SD model shroud is hollow whereas the smaller carbine shroud is solid with a hole drilled through it.
“To all retail customers:
On January 2010 American Tactical Imports Inc received official notification from the Bureau of Alcohol, Tobacco, Firearms and explosives that the original barrel shroud (aka: fake suppressor) supplied with your GSG 5 SD model must be replaced. It has been determined that this shroud is regulated under the National Firearms Act. American Tactical will provide a replacement shroud at no charge for each GSG 5 SD model sold or currently in inventory.
Consumers in possession of a GSG 5 SD model with the original shroud in place on the firearm are now in violation of the NFA. To avoid continued violation of the NFA, ATI asks that all persons in possession obtain a replacement shroud as soon as possible. We anticipate arrival of the new shrouds to begin by the middle of February 2010.
IMPORTANT: THE ORIGINAL SD MODEL SHROUD MUST BE RETURNED ACCOMPANIED BY THE FIREARM SERIAL NUMBER BEFORE A REPLACEMENT SHROUD IS ISSUED. THE DIAMETER OF THE SD SHROUD IS 1-9/16″. DO NOT RETURN THE SMALLER CARBINE SHROUD.
WHAT TO DO:
If possible return your old shroud to the dealer where purchased and show him this notice. The shroud will be returned to ATI along with a list of serial numbers from the guns that the shrouds were removed. ATI will send replacements to the dealer for pick up at your convenience; ATI will be sending replacements as fast as logistics allow. If your dealer is out of business or difficult to reach, or you purchased your gun used, from a consumer, return the shroud directly by US mail or UPS to American Tactical Imports Inc. 100 Airpark Drive Rochester, NY 14624.
PLEASE TRY NOT TO CALL US. We will provide comprehensive information on our web site or by e-mail to [email protected]
REMEMBER, INCLUDE THE FIREARM SERIAL NUMBER WITH EACH SHROUD OR A REPLACEMENT WILL NOT BE ISSUED.
This action IS NOT being instituted through any fault and is strictly due to NFA compliance. American Tactical will assume the responsibility to satisfy the requirements in an effort to minimize the impact on our customers and protect your investment.
We at American Tactical Imports Inc. sincerely apologize for any inconvenience caused by this unfortunate situation.
I first found this info here and a google search turned up the same info on many other site. However, it does not appear on the ATI website so it’s probably best to contact ATI via email if you own one.