If you want to get the full fun value out of your SIG 1911 .22LR handgun by being able to mount any 1/2x28 TPI threaded accessories such as a SUPPRESSOR, a FLASH HIDER from an AR15 or one of our UNRESTRICTED FAKE SUPPRESSORS, then this is the part that you need. This thread adapter easily replaces the factory barrel nut and provides the external male 1/2x28 thread.  

Our adapters are specifically engineered to provide the required shoulder to ensure that your suppressor is correctly aligned when screwed on to the adapter.  The additional alignment shoulder diameter necessitates that you unscrew the adapter as a function of disassemblying the pistol for cleaning which also ensures that you will be able to remove it in the future when desired even after shooting thousands of rounds.  

We manufacture 1000's thread adapters for other firearm manufacturers, national firearm wholesalers, local retail gun shops and you, our internet customers. So, don't let our low price fool you about the quality. Our professional volume manufacturing capability allows us to offer you a precision machined adapter at a price that you won't beat anywhere. Our SIG 1911 .22LR Thread Adapters are CNC manufactured to precision tolerances from solid steel rod (NOT aluminum) in one CNC lathe operation to ensure exact thread alignment and are hot salt blued to match your pistol. Each retail packaged adapter assembly consists of one adapter and one knurled OD thread protector. If you don't yet have a thread adapter for your SIG 1911 .22LR pistol, you're missing the best part of the gun! Order one now!

Note:  Firearms and other accessories are for product display and are not included with adapters.