JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

Rainier Arms

Pursue Your Passion

Menu

Account

Home
Rifle Parts
Receiver Parts
Receiver Sets

Receiver Sets

Next Level Armament NLX Prime AR-15 Billet Receiver Set

5.0 star rating 1 Review

Special Price $299.92 Regular Price $362.00
Four Payments of $74.98 with . Learn More

Add to Wish List Add to Compare
Next Level Armament Ascend AR-15 Matched Billet Receiver Set

4.0 star rating 8 Reviews

$475.00
Starting at 0% APR or $87.67/mo with . Learn More

Add to Wish List Add to Compare
RogueOps RO21 AR-15 Billet Receiver Set

$539.00 - $599.00
Starting at 0% APR or $26.91/mo with . Learn More

Add to Wish List Add to Compare
Radian Weapons AR-15 Builder's Kit 15.5" - Radian Grey

$1,399.95
As low as $151.98/mo with . Learn More

Add to Wish List Add to Compare
Quarter Circle 10 Side Charging Small Frame (Glock Compatible) 9MM Builders Kit

4.0 star rating 2 Reviews

$664.99 - $671.99
Starting at 0% APR or $33.20/mo with . Learn More

Add to Wish List Add to Compare
Centurion Arms MK11 7.62 Ambidextrous Billet Receiver Set - Black
★ Reviews

Popup content starts

Reviews by

close Popup

These are real reviews
from real shoppers

4.8 star rating 30621 Reviews

Site Reviews

Product Reviews

WRITE A REVIEW

* Indicates a required field

* Score:

* Title:

* Review:

You are connected as

Connect with:

-OR-

* Use your name:

* Email:

Review's title & body can't be empty Question's body can't be empty Please enter a star rating for this review Name field cannot be empty Invalid email Your review has already been submitted. Max length was exceeded Please fill out all of the mandatory (*) fields One or more of your answers does not meet the required criteria

Thank you for posting a review!

We value your input. Share your review so everyone else can enjoy it too.

share

share

share

Thank you for posting a review!

Your review was sent successfully and is now waiting for our staff to publish it.

Verified Reviewer

0.0 star rating

06/28/25

Review by Anonymous User

On

share ' Share Review by Anonymous User facebook facebook Share Review by Anonymous User twitter twitter Share Review by Anonymous User LinkedIn linkedin Share Review by Anonymous User

06/28/25

Was this review helpful?

0

0

J
James B.
Verified Buyer

5.0 star rating

06/28/25

Great product

Review by James B. on 28 Jun 2025 review stating Great product
Great product

On Emissary Development V2 Paddle Shifter Kit for SureFire X300

share ' Share Review by James B. on 28 Jun 2025 facebook facebook Share Review by James B. on 28 Jun 2025 twitter twitter Share Review by James B. on 28 Jun 2025 LinkedIn linkedin Share Review by James B. on 28 Jun 2025

06/28/25

Was this review helpful?

0

0

N
Noel G.
Verified Buyer

3.0 star rating

06/26/25

For compact not full size

Review by Noel G. on 26 Jun 2025 review stating For compact not full size
Says it's for made for the full size in the description, IT IS NOT, it is for the compact. It will still fit the full size, but it will look funny with the slide sticking out about half an inch.

On Icarus Precision ACE Echelon X Aluminum Grip Module

share ' Share Review by Noel G. on 26 Jun 2025 facebook facebook Share Review by Noel G. on 26 Jun 2025 twitter twitter Share Review by Noel G. on 26 Jun 2025 LinkedIn linkedin Share Review by Noel G. on 26 Jun 2025

06/26/25

Was this review helpful?

0

0

C
Christopher G.
Verified Buyer

3.0 star rating

06/26/25

No weight savings

Review by Christopher G. on 26 Jun 2025 review stating No weight savings
I got this as an alternative to a traditional upper with ejection port cover, forward assist, ramp with the hopes that it would be lighter. But putting this on the scale next to an Aero Precision with all the accoutrements attached, this came in at the same weight. So it's great if you're looking for a no-nonsense upper that is sleek and won't get snagged, but less good it you're goal is to shave off an ounce.

On Icarus Precision AR-15 Billet Stripped Upper Receiver

share ' Share Review by Christopher G. on 26 Jun 2025 facebook facebook Share Review by Christopher G. on 26 Jun 2025 twitter twitter Share Review by Christopher G. on 26 Jun 2025 LinkedIn linkedin Share Review by Christopher G. on 26 Jun 2025

06/26/25

Was this review helpful?

0

0

E
Edwin J.
Verified Buyer

5.0 star rating

06/24/25

Best forgrip

Review by Edwin J. on 24 Jun 2025 review stating Best forgrip
High recommended Buy 2

On A3 Industries Aluminum Modular Vertical Foregrip w/ Integrated Hand Stop - M-LOK 2" Smooth Grip

share ' Share Review by Edwin J. on 24 Jun 2025 facebook facebook Share Review by Edwin J. on 24 Jun 2025 twitter twitter Share Review by Edwin J. on 24 Jun 2025 LinkedIn linkedin Share Review by Edwin J. on 24 Jun 2025

06/24/25

Was this review helpful?

0

0

E
Edwin J.
Verified Buyer

5.0 star rating

06/24/25

Happy

Review by Edwin J. on 24 Jun 2025 review stating Happy
100% worth the money , perfect fit and the lower shipped next day will definitely buy again

On Lee Sporting Aluminum MP5 / SP5 / HK Clone Lower Housing - K Push-Pin

share ' Share Review by Edwin J. on 24 Jun 2025 facebook facebook Share Review by Edwin J. on 24 Jun 2025 twitter twitter Share Review by Edwin J. on 24 Jun 2025 LinkedIn linkedin Share Review by Edwin J. on 24 Jun 2025

06/24/25

Was this review helpful?

0

0

1 2 3 4 5 6 7 8 9

Reviews by

Popup content ends
$641.25
Starting at 0% APR or $64.41/mo with . Learn More

Add to Wish List Add to Compare
Noveske AR-15 Gen 4 Ambidextrous Matched Upper & Lower Receiver Set

notify me

Subscribe to back in stock notification

×

$712.50
Starting at 0% APR or $35.57/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
V Seven Weapon Systems Harbinger .308/7.62 Receiver Set

4.2 star rating 11 Reviews

notify me

Subscribe to back in stock notification

×

$769.21
Starting at 0% APR or $77.26/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
Angstadt Arms AR-15 0940 Receiver Set for Glock

5.0 star rating 2 Reviews

notify me

Subscribe to back in stock notification

×

$420.00
Starting at 0% APR or $91.54/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
V Seven Weapon Systems 7075 LR Enlightened AR-15 Receiver Set

5.0 star rating 2 Reviews

notify me

Subscribe to back in stock notification

×

$574.24
Starting at 0% APR or $77.19/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
Lantac N15 Raven Billet Receiver Set

4.5 star rating 2 Reviews

notify me

Subscribe to back in stock notification

×

$458.99
Starting at 0% APR or $100.04/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
Sons Of Liberty Gun Works Liberty Broadsword 89 Receiver Set

notify me

Subscribe to back in stock notification

×

$598.50
Starting at 0% APR or $29.88/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
Lantac SF15 USR FORGED UPPER & LOWER SET

5.0 star rating 3 Reviews

notify me

Subscribe to back in stock notification

×

$305.98
Starting at 0% APR or $66.69/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
Rainier Arms AR-15 Forged Receiver Set - KS

5.0 star rating 1 Review

notify me

Subscribe to back in stock notification

×

$250.00
Four Payments of $62.50 with . Learn More

Out of stock

Add to Wish List Add to Compare
SLR Rifleworks AR-15 SLR-B15 Ambi Billet Receiver Set

4.8 star rating 6 Reviews

notify me

Subscribe to back in stock notification

×

$551.99
Starting at 0% APR or $55.44/mo with . Learn More

Out of stock

Add to Wish List Add to Compare
SLR Rifleworks .308/7.62 SLR-B30 Ambi Billet Receiver Set

5.0 star rating 8 Reviews

notify me

Subscribe to back in stock notification

×

$639.99
Starting at 0% APR or $31.95/mo with . Learn More

Out of stock

Add to Wish List Add to Compare

Shopping Options

My Wish List

Last Added Items

You have no items in your wish list.

Google Customer Reviews

Google Customer Reviews