My son is moving to Boston for Grad school and will need to leave behind his PPQ. Is this gun Mass-compliant?

Hi Christopher and welcome. Yes Sir. This is Buds list of MA compliant models : https://www.budsgunshop.com/search.php/type/firearms/exclusive/mass - Cheers and stay safe!

Hi Christopher, yes sir, this is MA compliant. Stay safe & have a great day!

Yes it is a MA approved firearm

does it come with a moon clip?

Robert, this does not include moon clips. This comes with a cable lock, test round showing its in working order, keys for the internal frame lock and this comes in a cardboard box. Hope this helps.

Robert, it does not come with nor need moon clips Sir. Cheers and stay safe!

Robert, no, 38 special does not require moon clips. 38 special is a rimmed cartridge and doesn't require moon clips. Only rimless cartridges like 9mm, 380acp, 40s&w require moon clips. Hope this helps.

Does this gun come with a gun case?

Juan, no it just comes in a cardboard box. Have a great day!

Juan, unfortunately this does not come in a carry case. This just comes in a cardboard box. Sorry but hope this helps.

Juan, no Sir, it comes in a Smith and Wesson branded Cardboard Box. Cheers and stay safe! Unboxing video here : https://www.youtube.com/watch?v=FqbJDSkd0xw

No it does not come with a gun case.

Does this revolver have the flaking problem on the finish like they did several years ago

Thomas, fortunately it does not Sir. Recent models have a higher quality finish. Cheers and stay safe!

How does the internal lock safety work on the S&W M637 5rd airweight?

I'm guessing this refers to the built-in key lock on many S&W revolvers. Basically, it's a simple mechanism that interfaces with the hammer when engaged (via a small hand-cuff looking key) prevents you from firing while in the locked position. A state-mandated solution to a problem that isn't real, but here we are. Having deleted these in the past, I can also tell you that they're incredibly brittle and not a real safety solution at all...

Can you use 357 ammo in this 38 sp +p?

No, 38sp +p is still a lower pressure round than the .357, so it would not be safe to fire that in this revolver. In addition to that, the cylinder is made to use 38sp, not the longer .357 which would most likely be too long to fit properly.

Joe, no Sir. The 357 Magnum shell is too long to chamber in a 38 Special revolver. However, you can fire 38 Special out of a 357 Magnum revolver.

No, .357 is much more powerful and not safe to fire in a .38 Special revolver. The other way around works however, .357 revolvers can easily handle .38 Special pressure levels.

Square butt or round butt

James, this revolver has the classic S&W J-Frame round butt frame design.

James, the S&W m637 a round butt frame Sir.

What lb trigger does the S&W 637 have?

Dennis, the The single action trigger pull, with the hammer pre-cocked breaks at just over 2lbs pounds. Double Action is also 12 plus lbs of trigger pull.

Dennis, For self defense this revolver should be fired using double action. The double action trigger pull is a safe, heavy pull of over 12 lbs. Very light single action after first DA shot. Every revolver is slightly different, but SA is 3 lbs or less.

Mine is SA 2.6 lb and DA 11.7 lb

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Smith & Wesson Model 637 Airweight 38 Special Revolver - Stainless/Silver, 1.87" Barrel, 5 Rounds, Polymer Grips

Name: Smith & Wesson Model 637 Airweight 38 Special Revolver
Brand: S&W
SKU: 26309
Availability: InStock
Rating: 4.80 (37 reviews)

37 Reviews| 8 Questions & Answers

Model: 163050

Condition: Factory New

Bud's Item Number: 26309

UPC: 022188630503

MFG: S&W

Questions & Answers (8) Reviews 4.8 out of 5

Smith & Wesson Model 637 Airweight 38 Special Revolver

**Mouse over image above to zoom any area, or click on image to zoom the entire image.

The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market. With decades of reliable performance to its credit, the J-frame line offers models capable of firing .22 LR, .22 Magnum, .38 S&W Special and the more powerful .357 Magnum loads. Smith & Wesson offers these revolvers from our production, M&P, Pro Series, and Classics lines in three diverse hammer designs; internal, exposed and shrouded.

The Model 637 is a variation of the Model 37 Chiefs Special Airweight that integrates the time-tested features of the original with modern advancements. This ultra-light revolver is a favorite back-up and concealed carry firearm.

Specifications:

Weight: 15 oz.
Overall Length: 6.31"
Addl Info: Airweight Frame

Product Information

Finish

Hard Chrome

Type

AK Pistol

Caliber

357 Magnum/Will not cycle 38 special

Barrel Length

3.93

Capacity

Safety

N/A

Grips

N/A

Product Information

Finish

Case Hardened

Type

Semi-Automatic

Caliber

17 HMR / 22 Long Rifle

Barrel Length

10.6

Capacity

19+1

Safety

Trigger Safety

Grips

Ivory/Pearl

Product Information

Finish

Stainless/Silver

Type

Revolver

Caliber

38 Special

Barrel Length

1.87

Capacity

Safety

No Manual Safety

Grips

Polymer

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$472.99
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Charter Arms Undercover Lite Shamrock Green/Black 38 Sp

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Charter Arms Undercover Lite Pink Lady 38 Special Revolver

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Smith & Wesson Model 60 .357 Magnum, 2 1/8" Stainless 5 Shot

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Smith & Wesson Model 642 Airweight Matte Silver 38 Special Revolver

$495.99

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Type: Revolver

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Safety: Thumb Safety

Grips: Polymer

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Charter Arms Pathfinder 2" 22 WMR Revolver

$371.49

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Ruger LCR 9mm Revolver

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Smith & Wesson Model 638 Airweight 1.87" 38 Special Revolver

$458.49

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Capacity: 5

Safety: No Manual Safety

Grips: Polymer

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Smith & Wesson Model 642 Airweight Matte Stainless 38 Special Revolver

$497.49

Finish: Stainless/Silver

Type: Revolver

Action: Double

Caliber: 38 Special

Barrel Length: 1.87

Capacity: 5

Safety: No Manual Safety

Grips: Polymer

Manufacturer: S&W

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Technical Specifications Operators Manual

37 Reviews. 4.8 out of 5 Stars!

5 Stars

90%

4 Stars

3 Stars

2 Stars

1 Star

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Most Recent | Highest Ratings | Lowest Ratings

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Michael J. W on 03/18/2024

Rating: 5 of 5 Stars!

S&W Model 637 is an excellent little Revolver! Trigger is nice and a great finish on the gun! Buds did a great job making it easy to order ship and the follow up was great! Thank you!

Chad B on 02/19/2024

Rating: 5 of 5 Stars!

this gun is a blast to take to the range. Very powerful. Light weight, great to conceal. Buds shipped it very fast. Would recommend

Steven T on 12/30/2023

Rating: 5 of 5 Stars!

I had a S&W J Frame on by bucket list for a long time. After some consideration I decided on the Model 637. One the the factors for me is having an external hammer and single action option. The purchase process with Buds was very easy and quick as I have experienced several times. The revolver arrived in perfect condition and is well made with no flaws. The action and trigger pull is good for a shock gun. I love the alloy frame and finish. This little jewel preformed very well on our first live fire. It manages +P ammo well and the felt recoil is not excessive IMO. The stock rubber grips are excellent and help absorb some the of impact. I shot with wearing thin Mechanix Gloves and they were just right and function trigger pull and cylinder release just fine. So far I have fired 60 rounds of FMJ and JHP, 125 grain +P rounds. My first 5 rounds out of the box where rapid,10x ring shots on a B-27 target at 3 yards. At the ten yard line my groups were about 2 inches and head shots were not problem doubt or single action. I an very happy with this little "ace in a hole". Smith & Wesson has never let me down.

Barry H on 10/28/2023

Rating: 5 of 5 Stars!

Light, dependable, and reliable concealed carry. A+++

Jeremiah J on 08/01/2023

Rating: 5 of 5 Stars!

Easy to carry. Great quality!! Buds wins every time!!!!

Matthew P on 04/28/2023

Rating: 5 of 5 Stars!

My favorite carry revolver.

David P on 04/10/2023

Rating: 5 of 5 Stars!

Great for a boot carry. Smoothest action i have fired from a DA/SA revolver.

Scott B on 04/01/2023

Rating: 5 of 5 Stars!

This is my absolute favorite revolver. Unbelievably lightweight. Easy TX LTC qualifying with this sweet little revolver. This S&W will NOT disappoint. You’ll love it!

Duane D on 03/31/2023

Rating: 5 of 5 Stars!

I carry this one a lot, easy conceal carry. I really like this gun.

John B on 03/28/2023

Rating: 2 of 5 Stars!

This is not a beginner firearm. With such a light frame the recoil is stout for normal loads nevermind P. It is a food back up but being so unpleasant I can't see taking into the range enough for primary carry.

Show More Reviews Write Review

Questions & Answers

Q: My son is moving to Boston for Grad school and will need to leave behind his PPQ. Is this gun Mass-compliant?
Answered

Asked 12/06/2023 00:46 by Christopher J

A:

Hi Christopher and welcome. Yes Sir. This is Buds list of MA compliant models : https://www.budsgunshop.com/search.php/type/firearms/exclusive/mass - Cheers and stay safe!
See 2 more answers |
Q: does it come with a moon clip?
Answered

Asked 04/22/2022 05:41 by ROBERT H

A:

Robert, this does not include moon clips. This comes with a cable lock, test round showing its in working order, keys for the internal frame lock and this comes in a cardboard box. Hope this helps.
See 2 more answers |
Q: Does this gun come with a gun case?
Answered

Asked 04/07/2022 02:19 by Juan G

A:

Juan, no it just comes in a cardboard box. Have a great day!
See 3 more answers |
Q: Does this revolver have the flaking problem on the finish like they did several years ago
Answered

Asked 01/13/2022 22:20 by Thomas B

A:

Thomas, fortunately it does not Sir. Recent models have a higher quality finish. Cheers and stay safe!
Q: How does the internal lock safety work on the S&W M637 5rd airweight?
Answered

Asked 11/08/2020 07:59 by Brian S

A:

I'm guessing this refers to the built-in key lock on many S&W revolvers.
Basically, it's a simple mechanism that interfaces with the hammer when engaged (via a small hand-cuff looking key) prevents you from firing while in the locked position. A state-mandated solution to a problem that isn't real, but here we are.
Having deleted these in the past, I can also tell you that they're incredibly brittle and not a real safety solution at all...
Q: Can you use 357 ammo in this 38 sp +p?
Answered

Asked 07/30/2020 22:22 by Joseph S

A:

No, 38sp +p is still a lower pressure round than the .357, so it would not be safe to fire that in this revolver. In addition to that, the cylinder is made to use 38sp, not the longer .357 which would most likely be too long to fit properly.
See 2 more answers |
Q: Square butt or round butt
Answered

Asked 08/20/2019 20:19 by James W

A:

James, this revolver has the classic S&W J-Frame round butt frame design.
See 1 more answer |
Q: What lb trigger does the S&W 637 have?
Answered

Asked 07/06/2019 22:52 by Dennis P

A:

Dennis, the The single action trigger pull, with the hammer pre-cocked breaks at just over 2lbs pounds. Double Action is also 12 plus lbs of trigger pull.
See 2 more answers |