+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

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 FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll 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

NcSTAR Scope Ring - 1 inch Weaver Ring RB21

NcSTAR Scope Ring - 1'' Weaver Ring RB21
NcSTAR Scope Ring - 1'' Weaver Ring RB21
1 of 1 images
NcSTAR Scope Ring - 1'' Weaver Ring RB21

Tap Tap to Zoom

Questions & Answers
Customer Reviews
Helpful Positive Review
NcSTAR Scope Ring - 1" Weaver Ring RB21 by Legacy Reviewer, Verified Owner, February 24, 2012
Very good for the money. Low profile & holds scope in place perfectly after many rounds run through the rifle. Pros: Price Cons: None
1/1 found this helpful
Most Recent Reviews
Ncstar scope ring by Legacy Reviewer, Verified Owner, March 25, 2008
The rings works great easy to install just make sure the size is right. Pros: works Cons: no problem
Most Recent Reviews
What can I say there scope rings by Legacy Reviewer, Verified Owner, February 25, 2008
What can I say there scope rings thay eather work or not.
Read All 3 Reviews

Product Discontinued by Manufacturer

NcSTAR Scope Ring - 1 inch Weaver Ring RB21 has been discontinued by NcSTAR and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Rifle Scopes & Accessories, Riflescope Mounts, Rings & Bases, Rifle Scope Rings yourself to try and find the perfect replacement for you!

Product Info for NcSTAR Scope Ring - 1 inch Weaver Ring RB21

NcSTAR Scope Ring - 1" Weaver Ring RB21 on sale and available from our online store. OpticsPlanet, Inc is an Authorized US Distributor for NcSTAR Rifle Scope Mounts, Rings and Bases.image

Specifications for NcSTAR Scope Ring - 1" Weaver Ring RB21:

Model# :  RB21
Description :  1" Weaver Ring
N. W ( Oz. ) :  2.20
Length ( Inch ) :  1.50

Package Content:

  • Scope Ring - 1" Weaver Ring

Related Products to NcSTAR Scope Ring - 1 inch Weaver Ring RB21

Image of NcSTAR Long Eye Relief 2-7x32mm Rifle Scope w/ Scope Rings, 1 in Tube NcSTAR Long Eye Relief 2-7x32mm Rifle Scope w/ Scope Rings, 1 in Tube (46) List: $84.99 (Save 14%) $72.99
Image of NcSTAR SKS Combo/Tri-Mount/4X30 Compact Scope w/1in Rings NcSTAR SKS Combo/Tri-Mount/4X30 Compact Scope w/1in Rings (3) List: $69.99 (Save 14%) $59.99
Image of NcSTAR GEN3 SRT 3X-9X Rubber Armored Mil-Dot Rifle Scope NcSTAR GEN3 SRT 3X-9X Rubber Armored Mil-Dot Rifle Scope (2) List: $193.99 (Save 19%) $157.99
Image of NcSTAR AR Carry Handle Mount w/ Picatinny Rail NcSTAR AR Carry Handle Mount w/ Picatinny Rail (14) List: $12.99 (Save 23%) $9.99
Image of NcSTAR AR Carry Handle Mount w/ Picatinny Rail NcSTAR AR Carry Handle Mount w/ Picatinny Rail (14) List: $12.99 (Save 23%) $9.99
Image of NcSTAR Mark III Tactical Series 3-9x42mm Rifle Scopes 2 models NcSTAR Mark III Tactical Series 3-9x42mm Rifle Scopes (36) List: $157.99 (Save 23%) $120.99 Best Rated
Image of NcSTAR STR Series Full-Size Scope 4-16x44mm Rifle Scope NcSTAR STR Series Full-Size Scope 4-16x44mm Rifle Scope (1) List: $169.99 (Save 31%) $117.99 On Sale
Image of NcStar SKS Gas Tube Scope Mount w/ Side Rails NcStar SKS Gas Tube Scope Mount w/ Side Rails (25) List: $45.99 (Save 28%) $32.99 Best Rated
Image of NcStar SKS Gas Tube Scope Mount w/ Side Rails NcStar SKS Gas Tube Scope Mount w/ Side Rails (25) List: $45.99 (Save 28%) $32.99 Best Rated
Image of NcSTAR STR Series Full-Size 1-6x24mm 30mm Tube Rifle Scope 2 models NcSTAR STR Series Full-Size 1-6x24mm 30mm Tube Rifle Scope (20) As Low As (Save $12.00) $145.99 Best Rated
Image of NcSTAR Advance Dual Optic 3-9x42 Rifle Scope w/ Flip Up Red Dot 2 models NcSTAR Advance Dual Optic 3-9x42 Rifle Scope w/ Flip Up Red Dot (29) List: $241.99 (Save 20%) $193.99 Best Rated
Image of NcSTAR MARK III Gen3 Tactical 3-9x40 Rifle Scope 2 models NcSTAR MARK III Gen3 Tactical 3-9x40 Rifle Scope (4) List: $188.99 (Save 20%) $151.99
Image of NcSTAR ShotGun Rails Bayonet Mount Remington 870 NcSTAR ShotGun Rails Bayonet Mount Remington 870 (23) List: $19.99 (Save 30%) $13.99
Image of NcSTAR ShotGun Rails Bayonet Mount Remington 870 NcSTAR ShotGun Rails Bayonet Mount Remington 870 (23) List: $19.99 (Save 30%) $13.99
Image of NcSTAR AK Side Rail Optics Mount NcSTAR AK Side Rail Optics Mount (22) List: $32.99 (Save 18%) $26.99 Best Rated
Image of NcSTAR AK Side Rail Optics Mount NcSTAR AK Side Rail Optics Mount (22) List: $32.99 (Save 18%) $26.99 Best Rated
Image of NcSTAR MP5/HK Claw Scope Mount / Gen2 NcSTAR MP5/HK Claw Scope Mount / Gen2 (32) List: $19.99 (Save 20%) $15.99
Image of NcSTAR MP5/HK Claw Scope Mount / Gen2 NcSTAR MP5/HK Claw Scope Mount / Gen2 (32) List: $19.99 (Save 20%) $15.99
Image of NcSTAR Tactical SKS Scope Mount With Weaver Tri-rail MTSKS NcSTAR Tactical SKS Scope Mount With Weaver Tri-rail MTSKS (23) List: $38.99 (Save 15%) $32.99
Image of NcSTAR Tactical SKS Scope Mount With Weaver Tri-rail MTSKS NcSTAR Tactical SKS Scope Mount With Weaver Tri-rail MTSKS (23) List: $38.99 (Save 15%) $32.99
Image of NcSTAR 3-9x40 Shooter Series II Rifle Scope NcSTAR 3-9x40 Shooter Series II Rifle Scope (3) List: $72.99 (Save 16%) $60.99
Image of NcSTAR Compact Rifle Scope - 4x20.22 & Air Gun Scope / Blue / Ring SCA420B Rifle Scope NcSTAR Compact Rifle Scope - 4x20.22 & Air Gun Scope / Blue / Ring SCA420B Rifle Scope (7) List: $18.99 (Save 32%) $12.99
Image of NcSTAR Pistolero Rifle Scope - 2-7x32 Pistol Scope / Blue / Ring NcSTAR Pistolero Rifle Scope - 2-7x32 Pistol Scope / Blue / Ring (70) List: $72.99 (Save 16%) $60.99 Best Rated
Image of NcSTAR GEN II SPR Cantilever QR Scope Mount NcSTAR GEN II SPR Cantilever QR Scope Mount (9) List: $83.99 (Save 14%) $71.99

NcSTAR Scope Ring - 1 inch Weaver Ring RB21 Unavailable & Discontinued Models

List of Unorderable Models

  • NcSTAR Scope Ring - 1" Weaver Ring RB21 , MPN: RB21 , UPC: 814108012113 , Code: NC-RR-RB21
Compare (0)
1 item has been added
Add at least two items to compare
Last updated 2025-11-12 UTC.