S&W M&P 1.0 Manual Thumb Safety Detent Ball Spring Install Kit Smith Wesson M2.0

FREESTONE ARMORY
(22554)
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US $57.99/ea
Condition:
New
9 available495 sold
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Buy 3 or more for 53.93 each one
This one's trending. 495 have already sold.
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Get it between Sat, Nov 29 and Tue, Dec 2 to 94104.
Located in: Parker, Colorado, United States
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eBay item number:332915645929
Last updated on Nov 19, 2025 10:20:59 PSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
Smith & Wesson
For Gun Make
Smith & Wesson M&P
Type
Action Parts
Gauge/Caliber
9 mm Luger
Specific Part
Manual Thumb Safety Detent Ball Spring
Color
Silver
Model
Full Size Compact 1.0 2.0 M2.0
Material
Steel
MPN
392100000
For Gun Type
Handgun
For Gun Model
M&P 9 9mm 40 S&W 40S&W 357 sig 357sig 45ACP 45 ACP
Material/Finish
Steel
UPC
Does not apply
Category

Item description from the seller

About this seller

FREESTONE ARMORY

99.9% positive feedback•89K items sold

Joined Nov 2004
Usually responds within 24 hours
Your one stop shop for M&P parts and more
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

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Seller feedback (24,837)

All ratingsselected
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  • 0***g (1275)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    good quality had to file pivot hole just very slightly to fit works great good product
  • u***a (54)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    New Condition, Fit and functions perfectly.
  • -***b (499)- Feedback left by buyer.
    Past month
    Verified purchase
    Awesome seller. Hard to find item. Super fast delivery. Like new item.
See all feedback

Product ratings and reviews

Learn more
4.8
20 product ratings
  • 17 users rated this 5 out of 5 stars
  • 3 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 19 reviews
  • by thorosborn
    Apr 21, 2021Top favorable review

    Light M&P Thumb Safety

    This is what my M&P 2.0 needed. It is old school for sure but with a round chambered, for me, a must. There are two camps of opinion on thumb safety’s. I am used to a safety on auto’s and have found that a quick flick off on presentation takes no more time than if I did not have the safety. The added assurance the safety offers me was well worth the price. Super easy installation and it works well. One problem with it hence the four stars, the spring is a bit light. I have found my safety clicked off a bunch by my holsters when holstering my autos. The spring is really to light with little resistance to bumps by clothing, holsters, or really any pressure to the on/off thumb safety. So, all in all, I am happy to have the functioning safety but keep an eye on it.

    Verified purchase: YesCondition: NewSold by: freestone_armory

  • by mariodavidso_6
    Nov 04, 2020

    This is all you need to install a safety on your M&P.

    Exactly what was need to add a thumb safety to my pistol. All parts look like S&W factory parts and they function perfectly.

    Verified purchase: YesCondition: NewSold by: freestone_armory

  • by bill392
    Jun 15, 2019

    Works great, easy to install

    Worked fine, installed easily. Just be sure your M&P is one of the ones which does not have the lock in the frame where the safety would be. For the ones without the safety, but with the provision for it, the addition is really simple.

    Verified purchase: YesCondition: NewSold by: freestone_armory

  • by rip585
    May 03, 2019

    S&W M&P Thumb Safety replacement unit

    Direct install for M&P pistols without thumb safety. However, only works on those models with knockout plastic tab on side of lower receiver housing. Will not work on Pro Core models with lock on side of receiver. The sear mechanism is not compatible.

    Verified purchase: YesCondition: NewSold by: freestone_armory

  • by gundoc2000
    Jun 26, 2025

    good quality had to file pivot hole just...

    good quality had to file pivot hole just very slightly to fit works great good product

    Verified purchase: YesCondition: NewSold by: freestone_armory

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