GROVTEC HAMMER EXTENSION
SKU: 55474138631

GROVTEC HAMMER EXTENSION

Sale price$22.45 Regular price$24.95
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Description

GROVTEC HAMMER EXTENSION13 different hammer extensions to fit your firearm with an exposed hammer after you mount a scope. Note: Due to the varying dimensions of hammers, minor fitting may be required. Select the correct Hammer Extension for your firearm in menu above. We do not recommend the use of our hammer extensions for applications not listed. PART # FIREARMS FIT Hammer Slot Dimensions (W x H) GTHM68 Winchester 94s and Big Bore 94s including angle eject (except 94 22)

13 different hammer extensions to fit your firearm with an exposed hammer after you mount a scope.

Note: Due to the varying dimensions of hammers, minor fitting may be required. 

Select the correct Hammer Extension for your firearm in menu above. 

We do not recommend the use of our hammer extensions for applications not listed.

 

PART #

FIREARMS FIT

Hammer Slot Dimensions (W x H)

GTHM68

Winchester 94s and Big Bore 94s including angle-eject (except 94/22) and Ithaca X-caliber - 

0.360" x 0.139"

GTHM69

Winchester 94/22

0.315" x 0.125"

GTHM70

Marlin Lever Actions 1957-1982

0.320" x 0.094"

GTHM71

Browning BL-22, Astra 357

0.365" x 0.235"

GTHM72

Ruger Blackhawk, H&R Topper, New England Firearms Handi Rifle

0.315" x  0.238"

GTHM73

Browning BLR 1981-1991.  Does not fit 1992 & later models.  Not for use on folding hammers. Ithaca Tikka 12-70 over/under.

0.555" x  0.190"

GTHM74

All Marlin Lever Actions made in 1983 & later including 39A, 39M, 1894, 1894C, 1895S, 336C, 336T, 375, 444S, Glenfield 30A

0.375" x  0.094"

GTHM79

T/C Contender and S&W Model 29 (DOES NOT FIT T/C G2 Contender)

0.500" x  0.190"

GTHM277

Henry Big Boy, Pre 2010 models

0.300" x  0.187"

GTHM283

Henry Single Shot, Henry Big Boy Centerfire Rifles, Post 2010 models

0.306" x  0.109"

GTHM284

Henry 22 Pump and Lever Action rimfire rifles & Rossi 92/22 & Savage Revel .22

0.355" x  0.160"

GTHM285

Browning BLR 1992 -1995 Not for use on folding hammers.

0.630" x  0.208"

GTHM308

Model 36 Marlin (1936-1947) and Marlin 336 (1948-1956)

0.285" x  0.159"

 

 

 

NOTE: MINOR FITTING MAY BE REQUIRED - Not all hammers are made to exact tolerances. Sometimes you may need to lightly file the opening of your grovtec hammer extension to assure a secure fit. We recommend using a small metal file. You can also use some liquid bluing to re-coat the bare metal if necessary.

 

 

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SKU: 55474138631

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Vi-Ed
Natrona Heights, US
★★★★★ 5
Love these books. Better for alcohol markers
Format: Paperback, Format: Paperback
I like these coloring books because of the designs, thw fact that the back page is empty (thinking of bleeding) and the amount of drawings on the book. Meaning, its worth for the money. These are cute. Alcohol markers: these pages are made for this kind of markers. They blend well. Acrylic markers: these are not the best pages for these markers. Need to re-do strokes to get good coverage. Are not porous enough. Meaning, I can see the strokes on these pages; but, in other type of paper, the acrylic markers work better with single strokes. First picture: acrylic marker (see the strokes) Second picture: bleeding on back of paper (alcohol marker) Third picture: alcohol markers (other Coco Who book)
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Reviewed in the United States on May 14, 2026
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KDWeaver
Belleville, US
★★★★★ 5
Grab one of these for some relaxing coloring therapy!
Format: Paperback
such an adorable coloring book! I would recommend this for adults who like to color as well as children. Coloring pages are cute, easy pictures to color -nothing complicated. Everything is large enough to color easily. I look forward to sitting down with this coloring book and getting some stress-free time coloring.
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Reviewed in the United States on April 10, 2026
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Tellsitlikeitis
Houston, US
★★★★★ 5
Cute
Format: Paperback
Love this coloring book. Cute pictures.
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Reviewed in the United States on May 23, 2026
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Lucy L.
Natrona Heights, US
★★★★★ 4
Charming Coloring Book — Fun for All Ages
Format: Paperback
This coloring book has quickly become a favorite in our house! The illustrations are adorable and relaxing, making it just as enjoyable for adults as it is for kids. My daughter and I have spent hours coloring together, and it’s been a great way to unwind after school or on quiet weekend afternoons. What I love most is how versatile it feels — the designs range from simple and playful to more detailed, so everyone finds pages that match their mood and skill level. It’s also a fun way to keep little hands engaged without screens. Whether you’re looking for a creative activity to share with your kids or a gentle, artistic escape for yourself, this coloring book delivers plenty of charm and enjoyment. The only reason giving 4 stars is because of the price. Although the book is great, I do not think it is worth almost $10.
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Reviewed in the United States on December 30, 2025
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maddie
Louisville, US
★★★★★ 5
love coloring in these
Format: Paperback
always adorable pictures!!!
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Reviewed in the United States on May 23, 2026

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