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lower parts
The esophagus, (American English) or oesophagus (British English; see spelling differences) (), informally known as the food pipe or gullet, is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. The esophagus is a fibromuscular tube, about 25 cm (10 in) long in adults, which travels behind the trachea and heart, passes through the diaphragm and empties into the uppermost region of the stomach. During swallowing, the epiglottis tilts backwards to prevent food from going down the larynx and lungs. The word oesophagus is the Greek word οἰσοφάγος oisophagos, meaning "gullet".
The wall of the esophagus from the lumen outwards consists of mucosa, submucosa (connective tissue), layers of muscle fibers between layers of fibrous tissue, and an outer layer of connective tissue. The mucosa is a stratified squamous epithelium of around three layers of squamous cells, which contrasts to the single layer of columnar cells of the stomach. The transition between these two types of epithelium is visible as a zig-zag line. Most of the muscle is smooth muscle although striated muscle predominates in its upper third. It has two muscular rings or sphincters in its wall, one at the top and one at the bottom. The lower sphincter helps to prevent reflux of acidic stomach content. The esophagus has a rich blood supply and venous drainage. Its smooth muscle is innervated by involuntary nerves (sympathetic nerves via the sympathetic trunk and parasympathetic nerves via the vagus nerve) and in addition voluntary nerves (lower motor neurons) which are carried in the vagus nerve to innervate its striated muscle.
The esophagus may be affected by gastric reflux, cancer, prominent dilated blood vessels called varices that can bleed heavily, tears, constrictions, and disorders of motility. Diseases may cause difficulty swallowing (dysphagia), painful swallowing (odynophagia), chest pain, or cause no symptoms at all. Clinical investigations include X-rays when swallowing barium, endoscopy, and CT scans. Surgically,
the esophagus is difficult to access.
I have a limited number of G-43 lower parts kits. $110 each shipped. Discount to $90 if you order five. These kits have all the parts you need to complete an SS80 frame. These parts are polished for better performance and superior functioning of safety features. PP friends and family. Please DO...
Hello all!
Was gonna build my own, but I think I'm gonna do something else instead. So this is up for sale!
Brand NEW PF940v2 Full (G17 Size) Frame 80% Lower Cobalt (like a dark grey)
Brand NEW Lone Wolf Lower Parts Kit
Brand NEW Lone Wolf Extended Mag Release
All of this for $200 local...
Lower parts build kits:
#1) 1 complete lower build kit which include everything except a stock. (Lpk, milspec trigger, buffer tube and buffer, castle nut are included) from Brownells. $90ea-SOLD!
2) milspec trigger from a dpms lower parts kit, $25-sold
3) 2x milspec buffer tubes with castle...
I have 2 complete lower parts kits, new in packaging complete with milspec triggers, buffer tubes, springs and buffers.
everything you need except a stock.
I bought these from Brownells for a couple builds that I didn’t build.
$100ea and I have 2 of them for sale.
pick up in Molalla, OR or ship...
These are parts from a recent build and I've probably put 200 rounds through them (aside from the lower parts kit, that's brand new). Everything you need aside from a stripped lower to assemble your own M16A2 clone and LARP as an 80's/90's soldier.
I would love to keep it, but I need the cash...
Well.
Magpul trigger guard.
S&W M&P15 trigger.
YHM extended takedown pins.
Buffer tube, end plate, castle nut. Spring.
All lower parts to complete a lower.
Only thing missing is the safety selector.
I'm moved out of ar 15s.
Part trade on a red dot? Mini red dot?
I am looking for 4 factory OEM Glock complete lower parts kits for the Glock G20/21. These must be new OEM factory Glock parts. I am not interested in anything else but OEM Glock factory parts please do not waste my time or yours.
These are kits priced at $59.99 at fair websites and I am...
p80 pf940v2
New in box with jig and bits. New Glock 17 lower parts kit.
Cash or trades FTF in Vancouver/Portland
Please DM to keep thread clean. Thanks
Lower parts kit for Glock 19 P80 lower. Complete lower kit comes with a red anodized adjustable trigger with 6 mags. 3 oem and 3 Pmags. all like new and works great. . P80 lower not included.
$200 for the lot. Will ship
Text 3609709514. Jeff
2Anderson LPK’s
Will work With all milspec AR15 receivers
$52.00 each
only trade would be 8 cases of Kirkland Dog Cookies for both kits or 4 cases per kit each
they sell for 12.99 each= $52.00
NO AMMO CANS INCLUDED IN THIS SALE
I put together 2 extra sets from my spare parts bin. $60 per set.
note the mark on this side of the trigger does not affect it
Magpul B.A.D Lever (I don't have the allen wrench) $25 (SOLD)
Magpul B.A.D Lever (I don't have the allen wrench) (SOLD)
Seekins Precision Ambidextrous Safety...
Anyone ever ordered a Glock lower parts kit (Gen 3) from ebay? With the recent news I think it’s time to finish off these pieces of plastic. The only place that seems to have the LPK’s in stock is a bunch of sellers on eBay. Has anyone ever purchased one off eBay and if so, what was the name of...
***SOLD***
These are all brand new and unused items. This is a spare Magpul MOE lower parts kit from PSA that I do not need. All you need along with this kit is a lower stripped receiver and a complete upper receiver for a complete AR15 rifle.
Magpul MOE butt-stock, mil-spec
Magpul MOE...