Smith & Wesson M637 Airweight Revolver in .38 SPL +P Review

Smith & Wesson M637 Airweight Revolver in .38 SPL +P Review

Smith & Wesson’s small framed revolvers are by far their most popular. They’ve been going strong for nearly seventy years, starting with the introduction of the Chief’s Special back in 1950.

This traditional five-shot 38 Special revolver with an exposed hammer was immensely popular and spawned several variants including the aluminum framed Model 37. It retained the traditional lines of the Model 36 but was lighter in weight. Today, the Model 37 is no longer in production but its sibling, the Model 637 is still alive and kicking.

The Model 637 has an aluminum frame but the cylinder, crane, and barrel are all made of stainless steel. The 637 also bears some of the new Smith & Wesson features like the keylock above the cylinder release and the lack of a hammer-mounted firing pin.

The gun, fully loaded weighs 15.5 ounces and sports a 1 7/8 inch barrel. The 637 has a rubber grip instead of the original walnut grips that came on the M37. Although less sexy, the rubber dampens recoil, as the 637 is rated for +P ammunition.

The small framed S&W revolvers are considered to have one purpose and one purpose only – concealed carry. They’re lightweight and their curved appearance naturally blends with the curves of the body, yet they pack a real punch and are absolutely reliable. That’s why they still endear themselves to so many people, even though small automatics have come a long way since the 1950s.

The Model 637 can be had for under $400 which makes it an affordable and solid contender in the small revolver market.


  1. Chauncey Hart on May 3, 2023 at 3:59 am

    Review or Ad?

  2. Mexican English Bullterrier In America on May 3, 2023 at 4:00 am

    I put a crimson laser trace on my j frame. Can’t sleep without it on top of my nightstand. I even try to be all cool and practice pointing it as fast as I can while I’m half asleep

  3. Bhaltazhar on May 3, 2023 at 4:01 am

    Good choice, carry and be safe.
    Keep a knife handy just in case?

  4. frankie_ofthehighfive on May 3, 2023 at 4:03 am

    2022 $500

  5. randall bryant on May 3, 2023 at 4:05 am

    Well,, Say What You Wanna Say….This 637 Revolver with Three Finger Rubber Grips Kick’s Asss, And it’s Very Sexy…I Love it 🤟💥💥💥💥💥🤟.

  6. Ruger 357 on May 3, 2023 at 4:06 am

    Double action pull is very heavy.I like the gun.Thinking about having some trigger work done.

  7. Be Analog on May 3, 2023 at 4:09 am

    Good video. I just picked one of the up. I like it. What speed loader are you using. Some say they won’t work with the grips on his model.

  8. figbassist 75 on May 3, 2023 at 4:11 am

    I own and carry a S&W 437-2, which is the blackened version of the 637. It is my go-to for concealed carry. Great gun!

  9. Lenny Pignatello on May 3, 2023 at 4:11 am

    Can’t get one under $400 in 2022

  10. lhoward69 on May 3, 2023 at 4:12 am

    I’m getting this for my birthday I’m so excited lol

  11. American Monster on May 3, 2023 at 4:14 am

    Just bought one. They are about 500 now where I live. Love it

  12. Bryan Martinez on May 3, 2023 at 4:15 am

    Is this similar to the Airweight used by Japanese law enforcement.

  13. Ghost Shura on May 3, 2023 at 4:15 am

    Just got one – very happy

  14. Bowman on May 3, 2023 at 4:16 am

    If it’s light weight then I guess you can say it can be a back up gun after you use your shotgun in a home defense have you guys ever watch how a single mom defended her home with a double shotgun and a revolver I think tactical has taken over the chat

  15. USARMYvietnamVET1969 on May 3, 2023 at 4:19 am

    I’ve shot mine over 500 times and it’s still just like brand new.

  16. David ArizonaUnited on May 3, 2023 at 4:19 am

    This companion goes everywhere I go. Its lightweight reliable and very accurate. Only 5 shots but I rather have 5 then non.

  17. Eric Galarza on May 3, 2023 at 4:20 am

    Getting one tomorrow! Love revolvers! Especially the Saturday night special! #club pistol!

  18. SG 09 on May 3, 2023 at 4:21 am

    nice Gun

  19. randomguy on May 3, 2023 at 4:22 am

    Lil b!tch kicks. Your hand will hurt after a box the next day.

  20. Steve Sparks on May 3, 2023 at 4:22 am

    That thing is ugly. The frame recontour to put that stupid lock makes it look like a Charter Arms.

  21. j frame on May 3, 2023 at 4:23 am

    I own one and love it for summer carry.

  22. นายแก้ว โค้งโล้ง on May 3, 2023 at 4:25 am

    Can use the. +P+ ammo??

  23. first second on May 3, 2023 at 4:26 am

    pretty sure u r using g wrong ammo u should b using 38 s&w spell p+
    not 38 spell

  24. Eden Williams on May 3, 2023 at 4:27 am

    Got my gun this morning from expansion2 on wickr glock19 gen 5.fired this morning and it was fine..

  25. Tom Olofsson on May 3, 2023 at 4:28 am

    Wow, prices have gone way up since 2017.

  26. Sulaco2 on May 3, 2023 at 4:28 am

    Three rounds at three yards in three seconds is the nitch for this little blaster.

  27. sanman95 on May 3, 2023 at 4:28 am

    I have this gun in my home office desk in case of intruders or other trouble. It’s also the ideal carry firearm because it’s lightweight and VERY easy to conceal. People bash it because it only holds 5 bullets but if you need more than 5 bullets to shoot an intruder or any dangerous target then you probably shouldn’t be trusted with a firearm in the first place. This gun reminds me very much of the Model 36 that many cops and FBI agents carried in the 60s through to at least the 80s.

  28. Harry Mallory on May 3, 2023 at 4:32 am

    Hey! Thats my gun! Yay!

  29. AmericaNeedsWeed on May 3, 2023 at 4:32 am

    400…wow I paid 600 lmao I’m in California tho

  30. Ragnar Goldstein on May 3, 2023 at 4:33 am

    Fueling algor.

  31. FreeAmerica365 on May 3, 2023 at 4:33 am

    very weird I I just talked to my mother on the phone just like 4 hours ago about her getting this gun for home self-defense she is a older lady and has been broken in three times in the last five years. my mother is a old school type woman she has always loved her 410 .. and I told her about the Smith & Wesson and it is very light and easy to use and a very good price thanks for the great review and I will show her this video

  32. Leonard Lovelandjr on May 3, 2023 at 4:36 am

    I Love my S&W 637 it’s only 5shots

  33. Blackhawk 7R on May 3, 2023 at 4:37 am

    I have both the 637 and it’s Taurus clone. I assure you, both will consistently break the ex-wife’s 8” dinner saucers at 25yds. Just get them steady enough.

  34. Ronald Culley on May 3, 2023 at 4:39 am

    Get one!

  35. Justin Bailey on May 3, 2023 at 4:41 am

    God, that Hillary hole is such a turnoff.

  36. Bruhda Martinasty on May 3, 2023 at 4:42 am

    I live in a big city in gun control CA and never even considered owning a gun. But with all the social upheaval last year, I got me whatever was available – a semi-automatic XD9, service model. I never fired it, never took it to a range (they’re expensive in CA). So I was always concerned about knowing exactly how to operate it under duress. Today I sold it back to the same gun shop and am now waiting to pick up a 637. It’ll be really nice to have such a simple weapon to protect my home. Yesssss!

  37. James Hargis on May 3, 2023 at 4:45 am

    My 637 isn’t my EDC but it’s my favorite gun to carry during my daily walk because it’s so light and compact and handy to slip into my back pocket.

  38. Robert T on May 3, 2023 at 4:50 am

    I won a M637 Airweight 10+ years and it is the best personal protection handgun ever! It is a very intimidating handgun when pointed in your direction with the brass tips of the 38 SPL. rounds showings through the front of the 5 shot cylinder.

  39. Thailand Gjgfc on May 3, 2023 at 4:50 am

    Can you advise as the ring below the trigger is a bit corrode.Can it be repair or replace?

  40. Catherine Warner on May 3, 2023 at 4:51 am

    I have the same gun

  41. Alex McGregor on May 3, 2023 at 4:54 am

    The gun you’ll actually carry…

  42. Kinser on May 3, 2023 at 4:56 am

    Just got one – perfect CCW.

  43. Phillip Lopez on May 3, 2023 at 4:56 am

    I own a 642 . the only problem is that it is like trying to hide a potato if you are thin . the best thing about the gun is that you can fire it from your pocket over and over again .

  44. Gary Highley on May 3, 2023 at 4:57 am

    In a self defense situation you’ll likely not pull back the hammer…so I recommend going to a range and practice shooting this gun that way. It handles way differently and you should know what to expect.

  45. Mr. Benitez Himself on May 3, 2023 at 4:58 am

    Revolvers will always be relevant 💯