+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Q&A for Adams Arms Standard Picatinny Block Piston Kit — 33 Questions & 36 Answers

Name Adams Arms Standard Picatinny Block Piston Kit (4.2)
Currently Unavailable View Product
Write a Review
Please keep questions related to the product! If you have questions regarding availability, pricing, or shipping options for this item, please contact our customer service team.
Need an answer right now?
Contact us!
Continue As a Guest
Saving...
Sign In or Create an Account (optional)
or Register
Why use an OpticsPlanet.com account for my questions and answers?

Having an account with OpticsPlanet.com makes writing questions and answers even better! We’ll save all of your questions and answers in your account, provide you easy access to them, so you can see how the community has responded.

If you’d like to add a question without creating an account, you can proceed with filling out the fields on this form.

Show
Sort by
Filter by
Q
Jeff304, guest, from IN, United States, asked on September 05, 2021

Guys what bolt to I need to use? Can I use a standard bolt, if not where can I find the correct bolt so I can complete this build?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

I would recommend contacting the manufacture.
Adams Arms (727) 853-0550

1 of 7 found the following answer helpful.
Was it helpful to you? Yes | No
Share
View 1 More Answer Submit Your Answer
Q
Brian, member, from WA, United States, asked on August 01, 2021

I see the note about a bushing and dowel not being included. can I still install and use the product? I want it, but only if I can use it. thank you!

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

I would recommend contacting the manufacture.
Adams Arms (727) 853-0550

2 of 9 found the following answer helpful.
Was it helpful to you? Yes | No
Share
View 1 More Answer Submit Your Answer
Q
Nick, member, from TX, United States, asked on July 03, 2021

Does this only work with the D ring handguard?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

I would recommend contacting the manufacture.
Adams Arms (727) 853-0550

0 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
Share
View 1 More Answer Submit Your Answer
Q
Jericho, member, from PA, United States, asked on September 24, 2022

Will this work on a left handed Stag Arms upper?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on September 30, 2022

I would recommend using the Adams Arms Left-Handed P Series Adjustable Micro Block Piston Kit which was designed for left handed upper receivers. You can find it by using the link below:
https://www.opticsplanet.com/adams-arms-left-handed-p-series-adjustable-micro-block-piston-kit.html

Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
KainThePsycho, guest, from OR, United States, asked on October 08, 2021

Will this work on a 458 socom barrel

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

This Adams Arms Standard Picatinny Block Piston Kit is not recommended to be used with .458 SOCOM.

Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
D, guest, from GA, United States, asked on June 22, 2021

Does this use a standard ar15 buffer system or can this be shot with the stock folded

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

No, this still needs a buffer system.

Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
laflaone, member, from FL, United States, asked on June 05, 2021

Will this kit work with the S&W M&P15 SportII AR?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

Yes, this kit will work with you sport 2.

Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
DiMarko, member, from FL, United States, asked on May 19, 2021

Is this full auto bcg and would it work on Sig 516 7.5inch barrel?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

I would recommend contacting the manufacture.
Adams Arms (727) 853-0550

0 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
Eric Dunham, member, from NC, United States, asked on May 18, 2021

Will this fit a bull barrel?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

Yes it should work just fine with your bull barrel.

Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
JP, member, from VT, United States, asked on April 20, 2021

Will this gas piston system work in the Smith & Wesson M&P15 Sport 2 ??

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on September 13, 2021

Yes, this will work with your sport 2.

Was it helpful to you? Yes | No
Share
Submit Your Answer