OPS, INC compatible tube

(10 Reviews)
Current Stock:
Shipping 4/1



Ops, INC compatible builders kit

Includes-  8.8" 1.5 OD titanium tube  1.36 ID  knurled 3"    4.5 inch internal spacer

- Reflex mount compatible with the ops, inc muzzle break and collar commonly found on SPR rifles like the MK 12 Mod 0, Mod 1, and other SPR rifles

-End cap



Total length 9.125"

wieght  11 oz 

Reviews (10)


Written by derk on 20th Oct 2022

Impeccable quality


Written by William Huffman on 15th Apr 2022

Well worth the wait! Beautifully machined and exceeded my expectations. You wont be disappointed with this item.

Ops inc builders kit

Written by Robert on 6th Dec 2021

Still waiting for the form 1 to come back but until I get to finish this, all I can say is that the fit and finish of this kit is super nice. The options and build quality are awesome. Can't wait to buy more from these guys.


Written by Joe Rettell on 9th Sep 2021

Excellent quality and machining

Must have

Written by Vincent Sisneros on 5th Aug 2021

This is a must have for those wanting a mk12 clone

Kit looks great and has amazing tolerance

Written by Matthew on 24th Jun 2021

Kit looks and feels great, has awesome tolerance. (Almost air-tight when dropping a Shrimp Gang Design Chum Bucket and spacer assembly in!) From the cad model I’ve played around with, an additional 1.430” spacer will give 0.35” tip-first cup distance using Shrimp Gang Chum Bucket dividers, or a 1.660” spacer to give 0.5806” tip-first cup distance. When using a 1.430” spacer, there is about 3.557” of open room for all sorts of activities between the additional spacer and the bottom of the tube cap end. I am looking forward to all the solvent this kit will catch!

Ops Inc builders kit

Written by Mike on 29th Apr 2021

Fit, Finsh, and overall quality was exceptional. Mated perfectly to my ops Inc break on my mk12. Buy with confidence you won't be dissapointed.

OPs Inc Builder kit

Written by T A Baraccus on 18th Apr 2021

Ordered, shipped quick. Arrived on time. Finished the product and it fits aces on my MK12 with OPS Inc muzzle device and collar.

Mk12 kit

Written by Mike on 15th Jan 2021

Absolutely fantastic. This is a need for anyone with a mk12 build. Its built to amazing tolerance and the materials are beautiful even in the raw. This would make any mk12 owner smile from ear to ear.

So thankful

Written by Chris Bailey on 26th Nov 2020

About time someone made this, good call!!!

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