Marauder Big Bore Breech

#4 Best Seller in Breeches
4.00 out of 5 based on 1 customer rating
100% of buyers gave more than 4 star rating.


In stock (can be backordered)


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A breech, with 3/8 scope rail, bolt with seal, probe and bolt handle ready to install on you Marauder. Ambidextrous bolt works for right or left handed shooters.

The anodized aluminum breech attaches to your Marauder tube with the original screws.  A 1/2″ barrel dia. allows calibers up to .375.

  • Ambidextrous bolt included
  • 3/8″ Scope rails
  • For use with 1/2″ barrel up to .375 caliber

1 review for Marauder Big Bore Breech

  1. 4 out of 5
    1 review(s)

    josephb1969 (verified owner)

    I just received my breech today. Very nice build quality. I inserted my .500 OD .357 TJ barrel, and perfect fit. Cocking the bolt is done by a knurled knob and not a bolt handle, so I will take a bit getting use to it. Only qualm is that the bolt doesn’t fully meet & seal the barrel. So I had to unscrew the bolt probe and add extra rubber gaskets, but that seems to have fixed. All and all, I’d buy another one.

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