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Rainier Arms, LLC

Pinning & Welding: Standard

Pinning & Welding

Availability: In stock




Per regulations, a rifle barrel length must exceed 16? without being considered an NFA item. Our Pin & Weld service is available to permanently attach many muzzle devices to your barrel, thereby achieving compliance with these regulations. Compliance will vary depending on barrel length and muzzle device specifications. Call with any questions regarding this procedure.

Standard Pin and Weld:
  • Rainier Arms XTC
  • Rainier Arms Compensator
  • Rainier Arms XD
  • A2 Extended Flash Hider
  • BattleComp (Matte Stainless only)
  • BCM Mod 1 Compensator
  • Fortis Red Brake
  • Noveske KX3
  • POF .223 Flash Hider
  • PWS
  • Seekins ATC
  • Smith Enterprises Vortex
  • VLTOR Flash Hider
  • YHM Phantom (Non-mount)
Muzzle devices not listed will be charged at the discretion of Rainier Arms. If you are sending in an upper or barrel, actual shipping charges will be charged (approx. $15). Typical shop time is 7-14 days + shipping time. Permanantly attaching any suppressor mount VOIDS the warranty of any suppressor attached to the pinned mount.

Additional Info

Additional Info

Manufacturer Rainier Arms, LLC
Finish No
Barrel Length No
Caliber No
Configuration No
Option N/A
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (10)

Winner Winner Chicken Dinner: Rainier 'Smithing Services & PricingReview by Robert the Texan
I sent my 14.5 to Rainier to have a Lantac Dragon pinned. While I did consider doing it myself, for $39.99 it's hard to justify the risk vs. reward.. Excellent comms from Rainier throughout the entire process. My barrel and rail arrived in a well padded and protected box, bit arrived just as shipped it, LaRue index clips and all,
If I have another pin and weld that needs done, I will come right back to Rainier Arms. Excellent work and a fair pricing. I could not ask for more. (Posted on 1/14/2017)
No commentReview by Richard
Great job. (Posted on 1/12/2017)
Outstanding workReview by Ryan
Couldn't be happier with the outcome. Muzzle device was aligned perfectly and weld looks nice. I was pleasantly surprised to find they had also pinned my gas block. I live on the east coast and will still ship work to them for piece of mind in workmanship and service. Thanks Rainier Arms!!! (Posted on 12/27/2016)
No commentReview by Eric
excellent, would recommend (Posted on 12/5/2016)
No commentReview by Douglas
I'll sent you a photo of the complete build. (Posted on 11/30/2016)
No commentReview by Nelson
- (Posted on 10/2/2016)
No commentReview by Mike
I have to point out the weld to our range officer otherwise you can't see the pin weld. Perfect placement and alignment.The return packaging was excellent. (Posted on 9/23/2016)
No commentReview by Jeffery
Very clean installation. Timely service. Highly recommended.. (Posted on 8/27/2016)
Repinned a trifecta for Silencerco SPECWAR 556KReview by Vince
Very impressed with staff. Very professional in helping me throughout the process and keeping me informed. My Noveske N4 looks awesome and can't wait to attach my SPECWAR 556K to it!!! Would highly recommend Ranier Arms! (Posted on 7/30/2016)
Superb, professional jobReview by Daniel
Ordered the pin weld service to pin a Silencerco Trifecta to a BCM 14.5" barrel. Was worried the small space to work with on the trifecta, however, Rainier Arms did an outstanding job. Flawless clean appearance, looks exactly like the picture. Fast turnaround and excellent customer service. Even received an email when they got my parts. I would highly recommend the gunsmiths at Rainier Arms for your gun smithing needs. Proffessional! (Posted on 6/4/2015)

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