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Questions & Answers
Customer Reviews
Helpful Negative Review
This part is the same as all the rest of these things, IF you've seen ONE you've seen them ALL. The problem is this mil spec part is one of it's original design because it breaks too easily. The action/buffer impact sheers the tip off occasionally/...
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1/2 found this helpful
Most Recent Reviews
Exactly what you need by Bryler H, Verified Owner, March 7, 2026
What else can I say? If you need one this will work as needed. Low cost and does the job.
Most Recent Reviews
exactly what i needed to finish my build. by Texas Tea, Verified Owner, April 4, 2024
Came in a timely manner and the price was right! Installation was simple and straightforward I couldn’t be more pleased.
Most Recent Reviews
It is what it is by C Man, February 24, 2021
Good quality product nice to have these around just in case. Best price I could find on them it’s nice to find parts like these for spares when you’re not trying to buy an entire LPK. Reviews must be 200 characters not sure exactly how to make a revi...
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Most Recent Reviews
Not much to say, works and doesn't break by O.P. junkie, Verified Owner, November 25, 2020
Unknown on how I am to successfully review this due to its shear inability to be bad. Pretty hard to mess up this part unless you were to make it out of lead. Does it weigh more than a titanium version, sure. Does it add enough weight to consider she...
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Most Recent Reviews
Performs as expected by RED, April 8, 2020
Arrived quickly, I installed in an ongoing build. Fit perfectly and held in buffer and spring as expected. It is hard to write 200 words about a buffer retainer so my only other words would be if you need spare buffer retainers order them from Optics...
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Product Info for Luth-AR Buffer Retainer

The AR-15 Buffer Retainer secures the bolt in place and helps prevent any bolt movement while the bolt is being removed. This retainer slips onto the bolt carrier and helps prevent the bolt from coming off while the bolt is being removed. All that is required is the insertion of the set screw. Since the bolt must leave the bottom of the bolt housing, the bolt retainer must be inserted from the rear in order to engage the bolt hold open. After engaging the bolt hold open, rotate the handle to make sure the buffer is properly seated into the bolt hold open.image

Specifications for Luth-AR Buffer Retainer:

Manufacturer: Luth-AR
Color: Black
Finish: Manganese Phosphate
Country of Origin: USA

Features of Luth-AR Buffer Retainer

  • Mil-Spec
  • Manganese phosphate finish
  • Diameter .247

Package Contents:

  • Luth-AR Buffer Retainer

Luth-AR Buffer Retainer Orderable Models

List of Orderable Models

  • Luth-AR Buffer Retainer, Black, LR-01 , MPN: LR-01 , UPC: 859819007362 , Code: 3FN-LPK-101LUTH-LR-01
  • Luth-AR Buffer Retainer w/ Spring - 10 pack, LR-01A-10 , MPN: LR-01A-10 , UPC: 859992007579 , Code: 3FN-LPK-101LUTH-LR-01A-10
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Last updated 2026-08-11 UTC.