Don't get one from top notch.
AAC sells a fake suppressor called the Imitator.
It will fit a 3-lug barrel.
It looks exactly like the Striker (ETA: Subgun) suppressor they sell.
It is not listed on their website.
You have to call to get pricing.
www.advancedarmament.com/770.985.3109They have a helluva lot better service than Toad's crew...