AR15 Lower Receiver Parts & Kits

AR15 Lower Receiver Parts & Kits

“BKF Mil-Spec AR15 OR LR308 (DPMS) Receiver Extension Castle Nut Mil Spec” has been added to your cart. View cart

Showing 1–48 of 191 resultsSorted by price: low to high

Complete AR15 Rifle or Pistol build
Rated 5.00 out of 5
$0.00
69 in stock
Add to cart
Save $0.03
BKF AR15 Grip Screw Lock Washer
Rated 4.98 out of 5
Original price was: $0.16.Current price is: $0.13.
3571 in stock
Add to cart
Save $0.05
BKF AR15 Pivot/Takedown Detent Spring
Rated 4.98 out of 5
Original price was: $0.24.Current price is: $0.19.
54001 in stock
Add to cart
Save $0.05
BKF AR15 Buffer Retainer Spring
Rated 4.97 out of 5
Original price was: $0.24.Current price is: $0.19.
18798 in stock
Add to cart
Save $0.06
BKF AR15 Bolt Catch Spring
Rated 4.96 out of 5
Original price was: $0.28.Current price is: $0.22.
5813 in stock
Add to cart
Sale!
AR15 Grip Screw
Rated 5.00 out of 5
Original price was: $0.35.Current price is: $0.28.
Out Of Stock
Read more
Save $0.07
BKF AR15 Bolt Catch Coiled Roll Pin
Rated 4.93 out of 5
Original price was: $0.36.Current price is: $0.29.
3006 in stock
Add to cart
Save $0.07
BKF AR15 Disconnect Spring
Rated 4.96 out of 5
Original price was: $0.36.Current price is: $0.29.
26122 in stock
Add to cart
Save $0.09
BKF AR15 Trigger Guard Coiled Roll Pin
Rated 4.95 out of 5
Original price was: $0.44.Current price is: $0.35.
3750 in stock
Add to cart
Save $0.10
BKF AR15 Safety Selector Spring
Rated 4.96 out of 5
Original price was: $0.48.Current price is: $0.38.
21491 in stock
Add to cart
Save $0.10
BKF AR15 Ejection Port Cover Rod C-Clip
Rated 4.86 out of 5
Original price was: $0.48.Current price is: $0.38.
2585 In stock
Add to cart
Sale!
BKF AR15 Ejector Roll Pin
Original price was: $0.48.Current price is: $0.38.
Out Of Stock
Read more
Save $0.12
BKF Magazine Catch Spring
Rated 4.98 out of 5
Original price was: $0.60.Current price is: $0.48.
8974 In stock
Add to cart
Save $0.13
BKF AR15 Trigger Spring
Rated 5.00 out of 5
Original price was: $0.64.Current price is: $0.51.
7678 in stock
Add to cart
Save $0.14
BKF AR15 / AR10 Gas Key Screw
Original price was: $0.72.Current price is: $0.58.
679 In stock
Add to cart
Save $0.16
BKF AR15 Hammer Spring
Rated 5.00 out of 5
Original price was: $0.80.Current price is: $0.64.
17366 in stock
Add to cart
Save $0.17
BKF AR15 Firing Pin Retaining Pin
Rated 4.97 out of 5
Original price was: $0.84.Current price is: $0.67.
Available to Backorder
Add to cart
Save $0.23
BKF AR15 Bolt Catch Plunger
Rated 4.98 out of 5
Original price was: $1.16.Current price is: $0.93.
4394 in stock
Add to cart
Save $0.25
BKF AR15 Selector Detent
Rated 4.95 out of 5
Original price was: $1.24.Current price is: $0.99.
9633 in stock
Add to cart
Save $0.28
BKF AR15 Grip Screw
Rated 5.00 out of 5
Original price was: $1.40.Current price is: $1.12.
354 in stock
Add to cart
Save $0.34
BKF AR15 Carbine Buffer Spring Mil Spec
Rated 4.97 out of 5
Original price was: $1.68.Current price is: $1.34.
1189 in stock
Add to cart
Save $0.34
BKF AR15 Takedown/Pivot Pin Detents
Rated 4.98 out of 5
Original price was: $1.68.Current price is: $1.34.
8160 in stock
Add to cart
Save $0.39
BKF AR15 Extractor Retainer Pin – Nitride
Rated 5.00 out of 5
Original price was: $1.96.Current price is: $1.57.
774 in stock
Add to cart
Save $0.40
BKF AR15 Extractor O-Ring
Rated 5.00 out of 5
Original price was: $2.00.Current price is: $1.60.
81 in stock
Add to cart
Save $0.46
BKF AR15 Receiver Extension End Plate – Mil Spec
Rated 4.86 out of 5
Original price was: $2.28.Current price is: $1.82.
2563 in stock
Add to cart
Save $0.46
BKF M16 Mil Spec Auto (Sear Pin Only)
Rated 4.33 out of 5
Original price was: $2.32.Current price is: $1.86.
18 In stock
Add to cart
Save $0.52
BKF AR15 Mag Release Button
Rated 4.94 out of 5
Original price was: $2.60.Current price is: $2.08.
2048 in stock
Add to cart
Save $0.53
BKF AR15 Buffer Retaining Pin
Rated 4.94 out of 5
Original price was: $2.64.Current price is: $2.11.
1857 in stock
Add to cart
Save $0.60
BKF AR15 Extractor Spring
Rated 5.00 out of 5
Original price was: $3.00.Current price is: $2.40.
962 in stock
Add to cart
Save $0.60
BKF AR15 Extractor Spring Insert
Rated 5.00 out of 5
Original price was: $3.00.Current price is: $2.40.
192 in stock
Add to cart
Save $0.62
BKF AR15 Hammer/Trigger Pins
Rated 4.97 out of 5
Original price was: $3.12.Current price is: $2.50.
1879 In stock
Add to cart
Schmid Tool Two Stage – Disconnector Spring (Elite)
$2.50
973 In stock
Add to cart
Save $0.68
BKF AR15 Receiver Extension End Plate – Nitride
Rated 4.96 out of 5
Original price was: $3.40.Current price is: $2.72.
3229 in stock
Add to cart
Save $1.84
BKF Mil-Spec AR15 OR LR308 (DPMS) Receiver Extension Castle Nut Mil Spec
Rated 4.94 out of 5
Original price was: $4.60.Current price is: $2.76.
2529 In stock
Add to cart
Save $0.70
BKF AR15 Hammer/Trigger Pins – Nitride
Rated 5.00 out of 5
Original price was: $3.52.Current price is: $2.82.
2228 in stock
Add to cart
Save $0.74
BKF AR15 Receiver Tension Screw
Rated 4.75 out of 5
Original price was: $3.68.Current price is: $2.94.
718 in stock
Add to cart
Sale!
BKF AR15 Billet Extended Mag Release Button – Basketweave
Rated 4.93 out of 5
Original price was: $5.00.Current price is: $3.00.
Out Of Stock
Read more
Save $0.75
BKF AR15 Billet Extended Mag Release Button – Laser Engraved
Original price was: $3.75.Current price is: $3.00. UPC:
25 In stock
Select options This product has multiple variants. The options may be chosen on the product page
Save $0.78
BKF AR15 Lower Spring Kit
Rated 4.87 out of 5
Original price was: $3.88.Current price is: $3.10. UPC: 810124540173
8297 In stock
Add to cart
Save $2.08
BKF AR15 Carbine Buffer Spring Mil Spec 17-7 Stainless Steel
Rated 4.95 out of 5
Original price was: $5.20.Current price is: $3.12.
6259 In stock
Add to cart
Save $0.79
BKF M16 A1 Buttstock Screw
Rated 5.00 out of 5
Original price was: $3.96.Current price is: $3.17.
71 in stock
Add to cart
Save $0.79
BKF M16A2 Buttstock Screw
Original price was: $3.96.Current price is: $3.17.
446 in stock
Add to cart
Save $0.80
BKF AR15 A2 Rifle Length Buffer 17-7 Spring- Mil Spec
Rated 5.00 out of 5
Original price was: $4.00.Current price is: $3.20.
1036 In stock
Add to cart
Save $0.80
BKF M16 Mil Spec Full Auto Disconnect
Rated 5.00 out of 5
Original price was: $4.00.Current price is: $3.20.
187 In stock
Add to cart
Save $2.24
BKF AR15 A2 Rifle Length Buffer Spring – Mil Spec
Rated 5.00 out of 5
Original price was: $5.60.Current price is: $3.36.
1280 In stock
Add to cart
Save $2.29
BKF AR15 Takedown Pin – Phosphate
Rated 5.00 out of 5
Original price was: $5.72.Current price is: $3.43.
5465 in stock
Add to cart
Save $2.38
BKF AR15 Mil Spec Ejector
Original price was: $5.96.Current price is: $3.58.
39 In stock
Add to cart
Save $3.68
BKF Ar15 Mil Spec Disconnect
Rated 5.00 out of 5
Original price was: $7.36.Current price is: $3.68.
3261 In stock
Add to cart

HOT DEALS

(Click Deal for More Information)

Important notice

Notice - Ammunition.
Ammunition is restricted from sale to CT, IL, MA, NJ, NY, RI, New Orleans, LA, and Washington DC. You must be 18 or older to purchase ammunition, and 21 or older to purchase handgun ammunition. You must be 21 or older to purchase ammunition in DE. For safety reasons, we do not accept returns on ammunition.
All ammunition is considered hazardous and will be shipped ground, contiguous 48 states only. A street address is required for delivery.

Notice - Hazardous Material.
Hazardous Material. Must ship ground only. Not eligible for expedited shipping. Contiguous 48 states only. A physical address is required for delivery.

Notice - Ammo Returns.
For safety reasons we do not accept returns on ammunition, black powder, primers, reloading lead and brass or bullets.

Privacy Policy:

B. King's Firearms is a registered business in state of Ohio. What follows is the online privacy policy of B. King's Firearms, which governs personal information gathered on its Internet site, www.bkingsfirearms.com, in general and other registration forms related to training classes and store purchased offered by B. King's Firearms, as may be included on our Internet site, specifically.

Commitment to Online Security:

Physical, electronic and managerial procedures have been employed to safeguard the security and integrity of all personal information. B. King's Firearms encrypts billing information wherever such information is requested. No agents or contractors of B. King's Firearms have access to personal information obtained on the B. King's Firearms Web site.

Personal information that B. King's Firearms may collect online:

B. King's Firearms collects personal information online, including, but not limited to, names, birth dates, driver’s license (or State issued identification) numbers, postal and e-mail addresses, phone numbers, and billing information. B. King's Firearms does not knowingly collect or maintain any personal information from children under the age of 17. In addition, no parts of our sites are designed with the purpose of attracting any person under the age of 17.

How B. King's Firearms Uses Personal Information Collected Online:

Unless you otherwise consent, we will use your personal information only for the purpose for which it is submitted, such as to reply to your emails and process billing requests related to services and products to which we provide.

At certain points where personal information is collected on our site, there may be a box where you may indicate you would like to be on a mailing list to receive information about B. King's Firearms other programs and services and articles of interest relating to firearms, shooting, or general products. At any time you can add or remove your name from a B. King's Firearms list by contacting us at:

b.kingsfirearms@gmail.com
Subject: unsubscribe

How Your Information May Be Shared:

We never sell or rent your personal information. B. King's Firearms may, however, release personal information under the following circumstances:

Where release is required by law (for example, a subpoena) or regulation or is requested by a government agency;

Where our records indicate an individual may be engaged in fraudulent activity or other deceptive practices that a governmental agency should be made aware of;

To appropriate persons, where your communication suggests possible harm to others.

Computer Tracking and Cookies:

Our Web sites are not set up to track, collect or distribute personal information not entered by visitors. Our site logs do generate certain kinds of non-identifying site usage data, such as the number of hits and visits to our sites. This information is used for internal purposes by technical support staff to provide better services to the public and may also be provided to others, but again, the statistics contain no personal information and cannot be used to gather such information.

Problems or Complaints with B. King's Firearms Privacy Policy:

If you have a concern or complaint about B. King's Firearms compliance with this privacy policy, please direct it to b.kingsfirearms@gmail.com.

ORDER CHANGES POLICY:

Sometimes it is necessary to change or cancel an order after it has already been placed. We try to balance Super-Fast, Low-Cost Shipping while still trying to be Customer friendly when it comes to orders. Our shipping system is so fast, in many cases, it is only seconds from the time the order is placed until the time our folks in the shipping department start packing your order. Our shipping system ensures we get your order picked, pulled, packed and shipped quickly. Unfortunately, because our processes happen so quickly, it prohibits us from allowing changes to orders once they have been placed.

If you need to make a change to your order, including:

Adding/removing products
Modifying your credit card or billing information
Modifying the shipping address or shipping method

You will need to cancel your current order and place a new order with the updated information. Please understand, we ship extremely quickly. Depending on the level of orders we are experiencing when you place your order, the cancellation window may only be a few minutes and typically not longer than 15 minutes. Please cancel and reorder as soon as you realize you need to make a change in order to have the best opportunity to catch the order before it ships. Once it ships, your order cannot be cancelled.

RETURN POLICY:

(Click Here to Download Fillable .PDF Warranty & Return Form)

All sales are FINAL for serialized items. Serialized items must be transferred within 90 days of the order completion(or Fundraiser/Raffle Drawing Selection), unless otherwise specified and approved by B. King's Firearms prior to ordering. A There is a restocking fee of 8% if the order is cancelled and refunded to your CC or we can offer 100% in store credit. Once the item has left our store the restocking fee is 15%. For Refund you must pay the shipping back. Item's that are not 100% same condition will be reviewed by the Owner for refund % if we accept the return.

Our products are covered by manufactures warranties 100%, with that being said if we find you have a manufactures defect with your product you would contact them directly for repair or replacement. You have 7 days from when the product is delivered to your door or picked up from your FFL to report any defects or problems to us. IE...We will not except a return if you report a tiny scratch when your order was delivered two months earlier...

There will be a 30% restocking fee on all controlled items returned because of failed background checks.