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I wanted to share my experience with SilencerCo. One to alert new suppressor owners to be sure the thread depth of whatever silencer you buy matches your build. I know it seems obvious, but when you are talking about hundredths of an inch mistakes can be made. I made one. Two and most importantly is to let others know about a rare company that puts customer satisfaction top of the list of how to do business.

I bought a 22 Sparrow SS for my sbr'd ps90 and it fit perfectly, or so I thought. What I didn't realize was that the thread depth on my build was apparently a tiny bit over their maximum allowed. When I put it on I inadvertently damaged the o-ring which is at the top of the Sparrow threads. I had been getting half inch groups at 30 yds then with Sparrow on I was all over the place and lucky to get a hit on the paper.

After some research and careful re-read of the user guide I realized what had happened. I assumed my build with 1/2 x 28 threaded adapter would work with any silencer that would fit the threads. Assumed wrong.

Emailed SilencerCo to let them know I had a baffle strike and asked what they could do for me. Without delay I was issued an RMA by K.C. who is also going to send me 2 additional adapters, one quarter inch threaded washer stop and one 1/2 x 28 to 1/2 x 28. (I know sounds confusing but the adapter is machined back on one end to make sure the o-ring is not damaged, so it basically adds an inch.) They are now shipping the Sparrow with the short threaded washer.

I expected to pay for the repair and it would have been substantial since the Sparrow core is one piece. Their manual clearly states to make sure the thread depth of the gun is compatible with their silencer or the warranty will be voided. They are servicing mine and sending the adapters for free. Incredible level of customer care here folks.

These guys at SilencerCo are top notch. I will deal with them exclusively in the future.

Also want to shamelessly plut Mark at TROS who sbr'd my gun. Never expected 1/2 inch groups at 30 yds from such a short barrel. I was a happy camper at the range. He answered tons of questions for me and was most helpful. He now has a special adapter for the sparrow type suppressors to prevent the problem from happening in the future, no extra adapter needed. He also sells an ultra low sight mount.
 

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They are an excellent company. If you watch their "we are SilencerCo" video they state they even warranty stupid..... Once. I'm not saying what you did was stupid though HDsledge, it was an easy mistake to make but it shows that they care about their customers.

My sparrow is my favorite can. I sent my octane back to them to upgrade my blast chamber and it was back in a week.
 

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Discussion Starter · #7 · (Edited)
How did you know you had a baffle strike?
The Sparrow comes apart easily. Has 2 steel plates that surround the core and and and end caps, one waffle keyed and the other end threaded.

When I was removing it a bit of metal debris feel out on my bench. When I took it apart to look I could see brass lining the holes in the baffles and next to last baffle with an obvious strike on it. Stange enough the bullet corrected enough to pass through the next baffle and exit the end cap without damaging them. It was inaccurate from the first round so I think it struck the baffle first shot.

My dealer said he had the same issue and same result. I'm just glad SilencerCo are such troopers about making it right even if technically we broke the thing ourselves.

ps. didn't take a pic, they sent me an RMA within hours after I discovered the damage and I shipped it back same day.
 

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Well I was getting erratic suppressor behaviour and sure enough after taking mine apart there is a baffle strike as well. I was using a spacer . Guess its off to Silco . Hopefully they can fix it for me
20150411_135921.jpg 20150411_135934.jpg
 

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Discussion Starter · #9 ·
Well I was getting erratic suppressor behaviour and sure enough after taking mine apart there is a baffle strike as well. I was using a spacer . Guess its off to Silco . Hopefully they can fix it for me
How many rounds did you put through before you had the problem? Was it off zero from the first shot like mine was?

Do you know what your build thread depth is? Did you use their spacer?
 

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I mainly ran on 22lr pistols and 57 pistol with a 10x1-1/2x28 adapter. I dont know if 22lr or 57 whacked the baffle. When I ran on the ps90 I used the sico spacer
 

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Oh man, glad I came across this post. I should be getting mine back in the next week or so and was going to use the Sparrow. Just emailed [email protected] and asked him about the OP's aforementioned special adapter. Not sure if it's a complete replacement of the 10x1 - 1/2x28 or just something additional?
 

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Discussion Starter · #12 ·
Oh man, glad I came across this post. I should be getting mine back in the next week or so and was going to use the Sparrow. Just emailed [email protected] and asked him about the OP's aforementioned special adapter. Not sure if it's a complete replacement of the 10x1 - 1/2x28 or just something additional?
MArk said he would do it if I sent the gun to him. Looks like simple swap but I don't know what else he uses such as type of threadlocker if any. Looks as simple as holding his .5x28 in front and unscrew the barrel from the back with the narrow wrench. He also said the threaded washer they are shipping with the sparrow now should be fine so I'm going with that. Getting mine back Friday.

Here's what he said:
I make a 1/2-28 adapter that is specific to the Sparrow pattern suppressors. It has the nose turned down to accommodate the o-ring inside the can. We can simply replace your adapter with one having the Sparrow thread profile and all will be well.
and
You would need a narrow 15mm open end wrench and a 5/8" open end wrench to change it, or you can send me the receiver and I can do it for you. I would NOT recommend that you use their adapter on my adapter, then the can. You could still use other 1/2-28 cans on the Sparrow adapter.
 

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MArk said he would do it if I sent the gun to him. Looks like simple swap but I don't know what else he uses such as type of threadlocker if any. Looks as simple as holding his .5x28 in front and unscrew the barrel from the back with the narrow wrench. He also said the threaded washer they are shipping with the sparrow now should be fine so I'm going with that. Getting mine back Friday.

Here's what he said:
I make a 1/2-28 adapter that is specific to the Sparrow pattern suppressors. It has the nose turned down to accommodate the o-ring inside the can. We can simply replace your adapter with one having the Sparrow thread profile and all will be well.
and
You would need a narrow 15mm open end wrench and a 5/8" open end wrench to change it, or you can send me the receiver and I can do it for you. I would NOT recommend that you use their adapter on my adapter, then the can. You could still use other 1/2-28 cans on the Sparrow adapter.
Oh ok, do you know if that's a very new thing (like last few months?). I know when he cut my barrel down back in Oct 2014 he said he would include the Sparrow-cut adapter with the O-ring specs. I wasn't sure if this thing (with the spacer/etc) was a very recent thing or not
 

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Discussion Starter · #14 ·
Oh ok, do you know if that's a very new thing (like last few months?). I know when he cut my barrel down back in Oct 2014 he said he would include the Sparrow-cut adapter with the O-ring specs. I wasn't sure if this thing (with the spacer/etc) was a very recent thing or not
I believe Silencerco has been shipping the small threaded washer adapter for a while now but Mark says his sparrow compatible adapter eliminates the need for that and also is compatible with other silencers.

btw I am very pleased with Mark and TROS. The accuracy of my PS90 after the cut is phenominal. Half inch groups at 30 yds with a HoloSun red dot. I have an astigmatism so the dot is a bit unfocused. At 30 yds it covers the bullseye. I got the one that has the battery under the mount. 50,000 hours (about 5 years) from the battery is obscene so I don't care about having the battery compartment on the side. Looks more streamlined with it in the bottom. Only 130 bux or so and I am very happy with it. The auto on/off feature sold me. It usually comes on when I pick the gun up but if not a light tap or charging the weapon turns it on and it turns itself off after a few hours.
 

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Discussion Starter · #15 ·
Got my Sparrow back today with both adapters. The longer one comes with a thread protector in case you want to leave it on without a hider/brake/comp. The small threaded spacer is what I will use if it feels like the washer is engaged. I may try the other one since it has a taper at the end for the washer in the Sparrow. It adds about a half inch which is less than I expected. More stuff to come unscrewed though with that one. The washer doesn't add any more threads just takes up a few.

Took SilencerCo only 6 days to process mine and get it back to me. They do an outstanding job supporting their products.
 

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Discussion Starter · #17 ·
pics of SilncerCo threaded washer and .5x28 Sparrow adapter.

Here is the pic of the adapters. The threaded spacer on the left is .25" thick, dealer said they are shipping the Sparrow with one of those. .5x28 on the right with the thread protector I think that is sold by them for $41.
 

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Ok Thanks! I have the spacer on the left. My sparrow is out for delivery for me today hopefully I can use that bad boy again soon.
 

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I know this is an old thread but I'm glad I saw it. I email TROS and he's putting the right adapter on barrel thanks to this. Thanks for sharing the info.
 
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