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PDFGreen Mountain muzzle loading barrels are made from 1137 steel, which is annealed and stress relieved. All of our straight sided barrels are sold breeched (internal threads cut), but without a breech plug.
See our breech plug page for breech plugs.
Additional Services for barrels:
- We will fit a breech plug for a $25 labor charge (cost of breech plug extra).
- Patent breeches can be fitted for a $40 labor charge (cost of breech extra).
- We will cut dovetails for sights and tenons at a $10 labor charge for each slot. (You tell us where to cut them.)
Safety first!
Muzzle loading barrels are designed for black powder use only. The use of modern smokeless gunpowder will result in barrel failure and serious injury or death. Our barrels are designed for black powder only. Do not use black powder substitutes or smokeless powder.
Straight Octagonal Rifle Barrels by Green Mountain |
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| ORDER # | CALIBER | WIDTH | LENGTH | THREADED | TWIST | PRICE |
| 134042 | 0.40 | 13/16″ | 42″ | 5/8″ x 18TPI | 1 in 48″ | $197.95 |
| 134536 | 0.45 | 13/16″ | 36″ | 5/8″ x 18TPI | 1 in 48″ | $185.95 |
| 134542 | 0.45 | 13/16″ | 42″ | 5/8″ x 16TPI | 1 in 60″ | $197.95 |
| 74542 | 0.45 | 7/8″ | 42″ | 5/8″ x 18TPI | 1 in 60″ | $197.95 |
| 75036 | 0.50 | 7/8″ | 36″ | 5/8″ x 18TPI | 1 in 70″ | $185.95 |
| 75042 | 0.50 | 7/8″ | 42″ | 5/8″ x 18TPI | 1 in 70″ | $197.95 |
| 154536 | 0.45 | 15/16″ | 36″ | 5/8″ x 18TPI | 1 in 60″ | $185.95 |
| 154542 | 0.45 | 15/16″ | 42″ | 5/8″ x 18TPI | 1 in 60″ | $197.95 |
| 155036 | 0.50 | 15/16″ | 36″ | 5/8″ x 18TPI | 1 in 70″ | $185.95 |
| 155042 | 0.50 | 15/16″ | 42″ | 5/8″ x 18TPI | 1 in 70″ | $197.95 |
| 155436 | 0.54 | 15/16″ | 36″ | 5/8″ x 18TPI | 1 in 70″ | $185.95 |
| 155442 | 0.54 | 15/16″ | 42″ | 5/8″ x 18TPI | 1 in 70″ | $197.95 |
| 15036 | 0.50 | 1″ | 36″ | 3/4 x 16TPI | 1 in 70″ | $185.95 |
| 15436 | 0.54 | 1″ | 36″ | 3/4 x 16TPI | 1 in 70″ | $185.95 |
| 15842 | 0.58 | 1″ | 42″ | 3/4″ x 16TPI | 1 in 70″ | $197.95 |
We are happy to fill your order via telephone. We will tell you upfront if your parts are on hand, your total and when you can expect your package. Please be aware we are a family mail order business and we do not maintain a conventional store that you can visit.